What is the largest city in Rhineland-Palatinate?

Rhineland-Palatinate is located in western Germany covering an area of and a population of 4.05 million inhabitants, the seventh-most populous German state. Mainz is the state capital and largest city, while other major cities include Ludwigshafen am Rhein, Koblenz, Trier, Kaiserslautern, and Worms. Rhineland-Palatinate is surrounded by the states of North Rhine-Westphalia, Saarland, Baden-Württemberg, and Hesse. It also borders three foreign countries: France, Luxembourg and Belgium.

Rhineland-Palatinate

Rhineland-Palatinate (, ) is a state of Germany.

Rhineland-Palatinate was established in 1946 after World War II from territory of the historically separate regions of the Free State of Prussia, People's State of Hesse, and Bavaria, by the French military administration in Allied-occupied Germany. Rhineland-Palatinate became part of the Federal Republic of Germany in 1949, and shared the country's only border with the Saar Protectorate until it was returned to German control in 1957. Rhineland-Palatinate has since developed its own identity built on its natural and cultural heritage, including the extensive Palatinate winegrowing region, its picturesque landscapes, and many castles and palaces.

The state of Rhineland-Palatinate was founded shortly after the Second World War on 30 August 1946. It was formed mainly from the southern part of the Prussian Rhine Province (the "Regierungsbezirke" of Koblenz and Trier), from Rhenish Hesse, from the western part of Nassau and the Bavarian Rhenish Palatinate minus the county of Saarpfalz. The Joint German-Luxembourg Sovereign Region ("Gemeinschaftliches deutsch-luxemburgisches Hoheitsgebiet") is the only unincorporated area of the state of Rhineland-Palatinate. This condominium is formed by the rivers Moselle, Sauer, and Our, where they run along the border between Luxembourg and Rhineland-Palatinate or the Saarland.

The present state of Rhineland-Palatinate formed part of the French Zone of Occupation (1945-1949) after the Second World War. It comprised the former Bavarian Palatinate, the "Regierungsbezirke" ("government districts") of Koblenz and Trier of the old Prussian Rhine Province, those parts of the Province of Rhenish Hesse ("Rheinhessen") west of the River Rhine and belonging to the People's State of Hesse ("Volksstaat Hessen"), parts of the Prussian province of Hesse-Nassau (Montabaur) and the former Oldenburg region around Birkenfeld (Principality of Birkenfeld).

On 10 July 1945 the occupation authority on the soil of the present-day Rhineland-Palatinate transferred from the Americans to the French. To begin with, the French divided the region provisionally into two "upper presidiums" ("Oberpräsidien"), Rhineland-Hesse-Nassau (for the hitherto Prussian government districts and regions of Koblenz, Trier, and Montabaur) and Hesse-Palatinate (for the hitherto Bavarian Palatinate and old Hessian-Darmstadt province of Rhenish Hesse). The formation of the state was ordained on 30 August 1946, the last state in the Western Zone of Occupation to be established, by Regulation No. 57 of the French military government under General Marie-Pierre Kœnig. It was initially called Rhenish-Palatinate ("Rheinpfälzisches Land" or "Land Rheinpfalz"); the name Rhineland-Palatinate ("Rheinland-Pfalz") was first confirmed in the constitution of 18 May 1947.

The provisional French government at that time wanted originally to leave the option open of annexing further areas west of the Rhine after the Saarland was turned into a protectorate. When the Americans and British, however, had led the way with the establishment of German federal states, the French came under increasing pressure and eventually followed their example by setting up the states of Baden, Württemberg-Hohenzollern, and Rhineland-Palatinate. However, the French military government forbade the Saarland joining Rhineland-Palatinate. Mainz was named as the state capital in the regulation; the "Mixed Commission" ("Gemischte Kommission"), named as the highest organ of state charged with the administration of the new state and with the preparation of an advisory state assembly, started its work in Mainz. However, war damage and destruction meant that Mainz did not have enough administrative buildings; so the headquarters of the state government and parliament was provisionally established in Koblenz. On 22 November 1946 the constituent meeting of the Advisory State Assembly ("Beratende Landesversammlung") took place there, and a draft constitution was drawn up. Previously there had been local elections. Wilhelm Boden was (after a short term of office as the "Oberregierungspräsident" of Rhineland-Hesse-Nassau) nominated on 2 December as the minister president of the new state by the French military government.

Adolf Süsterhenn submitted a draft constitution to the Advisory State Assembly, which was passed after several rounds of negotiation on 25 April 1947 in a final vote with the absolute majority of the CDU voting for and the SPD and KPD voting against it. One of the reasons for this was that the draft constitution made provision for separate schools based on Christian denomination. On 18 May 1947, the Constitution for Rhineland-Palatinate was adopted by 53 percent of the electorate in a referendum. While the Catholic north and west of the new state adopted the constitution by a majority, it was rejected by the majority in Rhenish Hesse and the Palatinate. On the same date, the first elections took place for the state parliament, the Landtag of Rhineland-Palatinate. The inaugural assembly of parliament took place on 4 June 1947 in the large city hall at Koblenz. Wilhelm Boden was elected the first minister-president of Rhineland-Palatinate. Just one month later, Peter Altmeier succeeded him.

The constitutional bodies, the Government ("Landesregierung"), the Parliament ("Landtag") and the Constitutional Court ("Verfassungsgerichtshof"), established their provisional seat in Koblenz. In the following period, Koblenz and Mainz emphasized their suitability as the state capital in a public debate. From the very beginning, Minister-President Altmeier pressed for Mainz as the capital because he knew that the south of the country, especially the Palatinate, would not accept Koblenz, which was far to the north and formerly Prussian. On 16 May 1950, the "Landtag" decided to relocate itself and the "Landregierung" from Koblenz to Mainz. After the government and parliament moved to Mainz, many state authorities and courts remained in Koblenz, including the Constitutional Court and the State Archives. In addition, the German Federal Archives and Federal Office of Hydrology were established in Koblenz in 1952.

A sense of community developed only very gradually in the "land of the retort", which had been established largely without regard to the historical affiliations of its inhabitants. It was given little chance of survival, especially as it had very few large industrial centres. However, the establishment of numerous military bases, both Allied and Bundeswehr, helped to some extent to boost the economy. In 1956, under Article 29 of the Basic Law for the Federal Republic of Germany, petitions were made in the regions of Koblenz, Trier, Montabaur, Rhenish Hesse, and Palatinate for their incorporation into the respective states of North Rhine-Westphalia, Hesse, Bavaria, and Baden-Württemberg. All petitions for a referendum except those in the administrative district of Palatinate won the necessary majority; however, almost 20 years passed before the referenda finally took place. On 19 January 1975, none of the regions concerned returned a majority for being transferred to another state. This put an end to decades of discussion. Only the AKK conflict, a dispute over the districts of Mainz-Amöneburg, Mainz-Kastel, and Mainz-Kostheim, has continued to exercise politicians up to the present day.

Rhineland-Palatinate shares international borders with France (Grand Est), Luxembourg (Clervaux, Diekirch, Echternach, Grevenmacher, Remich, and Vianden), and Belgium (Wallonia). Within Germany it neighbours Baden-Württemberg, Hesse, Northrhine-Westphalia, and the Saarland. It is the ninth largest state by area. Rhineland-Palatinate is part of the SaarLorLux euregion.

With 42% of its area covered by forests it is the most forested state along with Hesse. The state's major rivers are the Rhine, including the UNESCO World Heritage Site Middle Rhine, and the Moselle. There are several crater lakes of volcanic origin in the Eifel, the biggest of which is the Laacher See.

The Rhenish Massif forms roughly the northern half of the state, including the regions Eifel, Moselle Valley, Hunsrück, Westerwald, and parts of the Taunus. The Palatinate forms the biggest part of the southern half along with Rhenish Hesse. The Nahe Valley separates both parts.

The following table shows the ten largest cities of Rhineland-Palatinate:
, 41.7% of the population of the state adhered to the Roman Catholic Church and 28.0% to the Evangelical Church in Germany. 30.3% of the population is irreligious or adheres to other religions. Muslims made up 2.5% of the total.

The league of ShUM-cities in the later Rhineland-Palatinate comprised the Jewish communities of Mainz, Speyer and Worms which became the center of Jewish life during Medieval times. The Takkanot Shum (), or Enactments of ShU"M were a set of decrees formulated and agreed upon over a period of decades by their Jewish community leaders.

Rhineland-Palatinate leads all German states with an export rate of approximately 50%. Important sectors are the winegrowing industry, chemical industry, pharmaceutical industry, and auto parts industry. "Distinctive regional industries" includes gemstone industry, ceramic and glass industry, and leather industry. Small and medium enterprises are considered the "backbone" of the economy in Rhineland-Palatinate. The principal employer is the chemical and plastics processing industry, which is represented by BASF in Ludwigshafen. Boehringer, Joh. A. Benckiser, SGE Deutsche Holding, and Schott Glassworks conclude the top 5 companies in the state.

Rhineland-Palatinate is Germany's leading producer of wine in terms of grape cultivation and wine export. Its capital, Mainz, may be called the capital of the German wine industry, being the home of the German Wine Institute, the German Wine Fund in the "" (House of German Wine), and the Wine Bourse, which brings together the top winemakers of Germany and the wine merchants of the world.

Of thirteen wine regions producing quality wine in Germany, six (,,,,, and ) are located in Rhineland-Palatinate, with 65% to 70% of the production of wine grapes in Germany having their origin within the state. 13,000 wine producers generate 80% to 90% of the German wine export, which was 2.6 million hectoliters in 2003.

Traditional grape varieties and a wide range of varieties developed during the last 125 years are characteristic for the region.

Classical white varieties are cultivated at. These comprise the famous Rieslings, (), (), and ().

The share of red varieties grew constantly during the last decades and amounts to., a new cultivar, is the leading red grape cultivated on, which is more than a third. () and () show also appreciable cultivated shares.

In addition,,, Chardonnay as white varieties and Regent and St. Laurent as red varieties have been increasing their share, as the growing conditions improve in Rhineland-Palatinate.

The state supports the wine industry by providing a comprehensive consultancy and education program in the service supply centers () of the land. The Geilweilerhof Institute for Grape Breeding is fully financed by the state. Many well known new breeds such as, Bacchus, Optima, and Regent have been created in these institutes.

The worldwide leader in sparkling wine production, producing 245 million bottles in 2006, is the renowned Group. This company is headquartered in Trier, with operations in several locations in Rhineland-Palatinate.

Other renowned sparkling wine producers such as,, and also had their roots in the region, but now belong to companies outside the state as a result of business consolidation.

The unemployment rate stood at 4.1% in October 2018 and was lower than the German average.

After Mainz and Ludwigshafen am Rhein, it is the third-largest city in Rhineland-Palatinate, with a population of around 112,000 (2015). Koblenz lies in the Rhineland.

Koblenz

Koblenz (; ), spelled Coblenz before 1926, is a German city situated on both banks of the Rhine where it is joined by the Moselle.

Koblenz was established as a Roman military post by Drusus around 8 B.C. Its name originates in the Latin "", meaning "(at the) confluence" of the two rivers. The actual confluence is today known as the "German Corner", a symbol of German reunification that features an equestrian statue of Emperor William I. The city celebrated its 2000th anniversary in 1992.

Around 1000 BC, early fortifications were erected on the Festung Ehrenbreitstein hill on the opposite side of the Moselle. In 55 BC, Roman troops commanded by Julius Caesar reached the Rhine and built a bridge between Koblenz and Andernach. About 9 BC, the ""Castellum apud Confluentes"", was one of the military posts established by Drusus.

Remains of a large bridge built in 49 AD by the Romans are still visible. The Romans built two castles as protection for the bridge, one in 9 AD and another in the 2nd century, the latter being destroyed by the Franks in 259. North of Koblenz was a temple of Mercury and Rosmerta (a Gallo-Roman deity), which remained in use up to the 5th century.

With the fall of the Western Roman Empire, the city was conquered by the Franks and became a royal seat. After the division of Charlemagne's empire, it was included in the lands of his son Louis the Pious (814). In 837, it was assigned to Charles the Bald, and a few years later it was here that Carolingian heirs discussed what was to become the Treaty of Verdun (843), by which the city became part of Lotharingia under Lothair I. In 860 and 922, Koblenz was the scene of ecclesiastical synods. At the first synod, held in the Liebfrauenkirche, the reconciliation of Louis the German with his half-brother Charles the Bald took place. The city was sacked and destroyed by the Norsemen in 882. In 925, it became part of the eastern German Kingdom, later the Holy Roman Empire.

In 1018, the city was given by the emperor Henry II to the archbishop-elector of Trier after receiving a charter. It remained in the possession of his successors until the end of the 18th century, having been their main residence since the 17th century. Emperor Conrad II was elected here in 1138. In 1198, the battle between Philip of Swabia and Otto IV took place nearby. In 1216, prince-bishop Theoderich von Wied donated part of the lands of the basilica and the hospital to the Teutonic Knights, which later became the "Deutsches Eck".

In 1249–1254, Koblenz was given new walls by Archbishop Arnold II of Isenburg; and it was partly to overawe the turbulent citizens that successive archbishops built and strengthened the fortress of Ehrenbreitstein that still dominates the city.

The city was a member of the league of the Rhenish cities which rose in the 13th century. The Teutonic Knights founded the Bailiwick of Koblenz in or around 1231. Koblenz attained great prosperity and it continued to advance until the disaster of the Thirty Years' War brought about a rapid decline. After Philip Christopher, elector of Trier, surrendered Ehrenbreitstein to the French, the city received an imperial garrison in 1632. However, this force was soon expelled by the Swedes, who in their turn handed the city over again to the French. Imperial forces finally succeeded in retaking it by storm in 1636.

In 1688, Koblenz was besieged by the French under Marshal de Boufflers, but they only succeeded in bombing the Old City ("Altstadt") into ruins, destroying among other buildings the Old Merchants' Hall ("Kaufhaus"), which was restored in its present form in 1725. The city was the residence of the archbishop-electors of Trier from 1690 to 1801.

In 1786, the last archbishop-elector of Trier, Clemens Wenceslaus of Saxony, greatly assisted the extension and improvement of the city, turning the Ehrenbreitstein into a magnificent baroque palace. After the fall of the Bastille in 1789, the city became, through the invitation of the archbishop-elector's chief minister, Ferdinand Freiherr von Duminique, one of the principal rendezvous points for French émigrés. The archbishop-elector approved of this because he was the uncle of the persecuted king of France, Louis XVI. Among the many royalist French refugees who flooded into the city were Louis XVI's two younger brothers, the Comte de Provence and the Comte d'Artois. In addition, Louis XVI's cousin, Prince Louis Joseph de Bourbon, prince de Condé, arrived and formed an army of young aristocrats willing to fight the French Revolution and restore the Ancien Régime. The "Army of Condé" joined with an allied army of Prussian and Austrian soldiers led by Duke Karl Wilhelm Ferdinand of Brunswick in an unsuccessful invasion of France in 1792. This drew down the wrath of the First French Republic on the archbishop-elector; in 1794, Coblenz was taken by the French Revolutionary army under Marceau (who was killed during the siege), and, after the signing of the Treaty of Lunéville (1801) it was made the capital of the new French départment of Rhin-et-Moselle. In 1814, it was occupied by the Russians. The Congress of Vienna assigned the city to Prussia, and in 1822, it was made the seat of government for the Prussian Rhine Province.

After World War I, France occupied the area once again. In defiance of the French, the German populace of the city insisted on using the more German spelling of Koblenz after 1926. During World War II it was the location of the command of German Army Group B and like many other German cities, it was heavily bombed and rebuilt afterwards. Between 1947 and 1950, it served as the seat of government of Rhineland-Palatinate.

The Rhine Gorge was declared a World Heritage Site in 2002, with Koblenz marking the northern end.

Its defensive works are extensive, and consist of strong forts crowning the hills encircling the city to the west, and the citadel of Ehrenbreitstein on the opposite bank of the Rhine. The old city was triangular in shape, two sides being bounded by the Rhine and Mosel and the third by a line of fortifications. The latter were razed in 1890, and the city was permitted to expand in this direction. The Koblenz Hauptbahnhof (central station) was built on a spacious site outside the former walls at the junction of the Cologne-Mainz railway and the strategic Metz-Berlin line. In April 2011 Koblenz-Stadtmitte station was opened in the inner city to coincide with the opening of the Federal Garden Show 2011. The Rhine is crossed by the Pfaffendorf Bridge, originally the location of a rail bridge, but now a road bridge and, a mile south of city, by the Horchheim Railway Bridge, consisting of two wide and lofty spans carrying the Lahn Valley Railway, part of the Berlin railway referred to above. The Moselle is spanned by a Gothic freestone bridge of 14 arches, erected in 1344, two modern road bridges and also by two railway bridges.

Since 1890, the city has consisted of the Altstadt (old city) and the Neustadt (new city) or Klemenstadt. Of these, the Altstadt is closely built and has only a few fine streets and squares, while the Neustadt possesses numerous broad streets and a handsome frontage along the Rhine.

In the more ancient part of Koblenz stand several buildings which have a historical interest. Prominent among these, near the point of confluence of the rivers, is the Basilica of St. Castor or "Kastorkirche", dedicated to Castor of Karden, with four towers. The church was founded in 836 by Louis the Pious, but the present Romanesque building was completed in 1208, the Gothic vaulted roof dating from 1498. In front of the church of Saint Castor stands a fountain, erected by the French in 1812, with an inscription to commemorate Napoleon's invasion of Russia. Not long after, Russian troops occupied Koblenz; and St. Priest, their commander, added in irony these words: "Vu et approuvé par nous, Commandant russe de la Ville de Coblence: Janvier 1er, 1814."

In this quarter of the city, too, is the "Liebfrauenkirche", a fine church (nave 1250, choir 1404–1431) with lofty late Romanesque towers; the castle of the electors of Trier, erected in 1280, which now contains the municipal picture gallery; and the family house of the Metternichs, where Prince Metternich, the Austrian statesman, was born in 1773. Also notable is the church of St. Florian, with a two towers façade from c. 1110.

The former Jesuit College is a Baroque edifice by J.C. Sebastiani (1694–1698) serves as the current City Hall.

Near Koblenz is the Lahneck Castle near Lahnstein, open to visitors from 1 April to 31 October.

The city is close to the Bronze Age earthworks at Goloring, a possible Urnfield calendar constructed some 3000 years ago.

In the modern part of the city lies the palace ("Residenzschloss"), with one front looking towards the Rhine, the other into the Neustadt. It was built in 1778–1786 by Clemens Wenceslaus, the last elector of Trier, following a design by the French architect P.M. d'Ixnard. In 1833, the palace was used as a barracks, and became a terminal post for the optical telecommunications system that originated in Potsdam. Today, the elector's former palace is a museum. Among other exhibits, it contains some Gobelin tapestries. From it some gardens and promenades (Kaiserin Augusta Anlagen) stretch along the bank of the Rhine, and in them is a memorial to the poet Max von Schenkendorf. A statue to the empress Augusta, whose favourite residence was Coblenz, stands in the Luisenplatz.

The Teutonic Knights were given an area for their Deutschherrenhaus Bailiwick right at the confluence of the Rhine and Mosel, which became known as "German Corner" (Deutsches Eck).

In 1897, a monument to German Emperor William I of Germany, mounted on a 14-metre-high horse, was inaugurated there by his grandson Wilhelm II. The architect was Bruno Schmitz, who was responsible for a number of nationalistic German monuments and memorials. The "German Corner" is since associated with this monument, the (re) foundation of the German Empire and the German refusal of any French claims to the area, as described in the song "Die Wacht am Rhein" together with the "Wacht am Rhein" called "Niederwalddenkmal" some upstream.

During World War II, the statue was destroyed by US artillery. The French occupation administration intended the complete destruction of the monument and wanted to replace it with a new one.

In 1953, Bundespräsident Theodor Heuss re-dedicated the monument to German unity, adding the signs of the remaining western federal states as well as the ones of the lost areas in the East. A Flag of Germany has flown there since. The Saarland was added four years later after the population had voted to join Germany.

In the 1980s, a film clip of the monument was often shown on late night TV when the national anthem was played to mark the end of the day, a practise which was discontinued when nonstop broadcasting became common.
On 3 October 1990, the very day the former GDR states joined, their signs were added to the monument.

As German unity was considered complete and the areas under Polish administration were ceded to Poland, the monument lost its official active purpose, now only reminding of history. In 1993, the flag was replaced by a copy of the statue, donated by a local couple. The day chosen for the reinstatement of the statue, however, caused controversy as it coincided with Sedantag (Sedan Day) (2 September 1870) a day of celebration remembering Germany's victory over France in the Battle of Sedan. The event was widely celebrated from the 1870s until the 1910s.

Formerly separate villages now incorporated into the jurisdiction of the city of Koblenz
Koblenz is a principal seat of the Mosel and Rhenish wine trade, and also does a large business in the export of mineral waters. Its manufactures include automotive parts (braking systems – TRW Automotive, gas springs and hydraulic vibration dampers – Stabilus), aluminium coils (Aleris Aluminum), pianos, paper, cardboard, machinery, boats, and barges. Since the 17th century, it has been home to the Königsbacher brewery (the Old Brewery in Koblenz's city centre, and now a plant in Koblenz-Stolzenfels). It is an important transit centre for the Rhine railways and for the Rhine navigation.

The headquarters of the German Army Forces Command is located in the city.

Since September 19, 2012 an Amazon logistics centre is in service. It is located some outside the city at the Autobahnkreuz Koblenz.

To the west of the town is the autobahn A 61, connecting Ludwigshafen and Mönchengladbach, to the north is the east-west running A 48, connecting the A 1, Saarbrücken-Cologne, with the A 3, Frankfurt-Cologne. The city is also on various federal highways 9, 42, 49, 416, 258 and 327. The Glockenberg Tunnel connects the Pfaffendorf Bridge to the B 42.
The following bridges cross:"Koblenz Hbf" is an Intercity-Express stop on the West Rhine Railway between Bonn and Mainz and is also served by trains on the East Rhine Railway Wiesbaden–Cologne. Koblenz is the beginning of the Moselle line to Trier (and connecting to Luxemburg and Saarbrücken) and the Lahn Valley Railway to Limburg and Gießen. The other stations in Koblenz are Koblenz-Ehrenbreitstein, Koblenz-Güls, Koblenz-Lützel, Koblenz-Moselweiß and Koblenz Stadtmitte, which opened on 14 April 2011.

The campus Koblenz of University of Koblenz and Landau is located in the city.
The University of Applied Sciences Koblenz (German: "Hochschule Koblenz") is also located in the city.

Koblenz is twinned with:
In Philip Reeve's series "The Mortal Engines Quartet", Koblenz, as Panzerstadt Koblenz, is a member of the Traktionstadtsgesellschaft, a fictional league of German traction cities formed to combat the ruthless advance of the Anti-tractionists, thousands of years in the future.

The children's toy yo-yo was nicknamed "de Coblenz (Koblenz)" in 18th-century France, referring to the large number of noble French émigrées then living in the city.

Mainz (; ;, ) is the capital and largest city of Rhineland-Palatinate, Germany. The city is located on the Rhine river at its confluence with the Main river, opposite Wiesbaden on the border with Hesse. Mainz is an independent city with a population of 206,628 (2015) and forms part of the Frankfurt Rhine-Main Metropolitan Region.

Mainz

Mainz was founded by the Romans in the 1st Century BC during the Classical antiquity era, serving as a military fortress on the northernmost frontier of the Roman Empire and as the provincial capital of Germania Superior. Mainz became an important city in the 8th Century AD as part of the Holy Roman Empire, becoming the capital of the Electorate of Mainz and seat of the Archbishop-Elector of Mainz, the Primate of Germany. Mainz is famous as the home of Johannes Gutenberg, the inventor of the movable-type printing press, who in the early 1450s manufactured his first books in the city, including the Gutenberg Bible. Historically, before the 20th century, the city was known in English as Mentz and in French as Mayence. Mainz was heavily damaged during World War II, with more than 30 air raids destroying about 80 percent of the city's center, including most of the historic buildings. Today, Mainz is a transport hub and a center of wine production.

Mainz is located on the 50th latitude, on the left bank of the river Rhine, opposite the confluence of the Main with the Rhine. The population in the early 2012 was 200,957, an additional 18,619 people maintain a primary residence elsewhere but have a second home in Mainz. The city is part of the Rhein Metro area comprising 5.8 million people. Mainz can easily be reached from Frankfurt International Airport in 25 minutes by commuter railway (Line S8).
Mainz is a river port city as the Rhine which connects with its main tributaries, such as the Neckar, the Main and, later, the Moselle and thereby continental Europe with the Port of Rotterdam and thus the North Sea. Mainz's history and economy are closely tied to its proximity to the Rhine historically handling much of the region's waterborne cargo. Today's huge container port hub allowing trimodal transport is located on the North Side of the town. The river also provides another positive effect, moderating Mainz's climate; making waterfront neighborhoods slightly warmer in winter and cooler in summer.

After the last ice age, sand dunes were deposited in the Rhine valley at what was to become the western edge of the city. The Mainz Sand Dunes area is now a nature reserve with a unique landscape and rare "steppe" vegetation for this area.

While the Mainz legion camp was founded in 13/12 BC on the Kästrich hill, the associated vici and canabae were erected in direction to the Rhine. Historical sources and archaeological findings both prove the importance of the military and civilian Mogontiacum as a port city on the Rhine.

Mainz experiences an oceanic climate (Köppen climate classification "Cfb").

The Roman stronghold or "castrum Mogontiacum", the precursor to Mainz, was founded by the Roman general Drusus perhaps as early as 13/12 BC. As related by Suetonius the existence of "Mogontiacum" is well established by four years later (the account of the death and funeral of Nero Claudius Drusus), though several other theories suggest the site may have been established earlier. Although the city is situated opposite the mouth of the Main, the name of Mainz is not from Main, the similarity being perhaps due to diachronic analogy. Main is from Latin "Menus", the name the Romans used for the river. Linguistic analysis of the many forms that the name "Mainz" has taken on make it clear that it is a simplification of "Mogontiacum". The name appears to be Celtic and ultimately it is. However, it had also become Roman and was selected by them with a special significance. The Roman soldiers defending Gallia had adopted the Gallic god Mogons (Mogounus, Moguns, Mogonino), for the meaning of which etymology offers two basic options: "the great one", similar to Latin magnus, which was used in aggrandizing names such as "Alexander magnus", "Alexander the Great" and "Pompeius magnus", "Pompey the great", or the god of "might" personified as it appears in young servitors of any type whether of noble or ignoble birth.

Mogontiacum was an important military town throughout Roman times, probably due to its strategic position at the confluence of the Main and the Rhine. The town of "Mogontiacum" grew up between the fort and the river. The castrum was the base of Legio XIV "Gemina" and XVI "Gallica" (AD 9–43), XXII "Primigenia", IV "Macedonica" (43–70), I "Adiutrix" (70–88), XXI "Rapax" (70–89), and XIV "Gemina" (70–92), among others. Mainz was also a base of a Roman river fleet, the Classis Germanica. Remains of Roman troop ships (navis lusoria) and a patrol boat from the late 4th century were discovered in 1982/86 and may now be viewed in the "Museum für Antike Schifffahrt". A temple dedicated to Isis Panthea and Magna Mater was discovered in 2000 and is open to the public. The city was the provincial capital of Germania Superior, and had an important funeral monument dedicated to Drusus, to which people made pilgrimages for an annual festival from as far away as Lyon. Among the famous buildings were the largest theatre north of the Alps and a bridge across the Rhine. The city was also the site of the assassination of emperor Severus Alexander in 235.

Alemanni forces under Rando sacked the city in 368. From the last day of 405 or 406, the Siling and Asding Vandals, the Suebi, the Alans, and other Germanic tribes crossed the Rhine, possibly at Mainz. Christian chronicles relate that the bishop, Aureus, was put to death by the Alemannian Crocus. The way was open to the sack of Trier and the invasion of Gaul.

Throughout the changes of time, the Roman castrum never seems to have been permanently abandoned as a military installation, which is a testimony to Roman military judgement. Different structures were built there at different times. The current citadel originated in 1660, but it replaced previous forts. It was used in World War II. One of the sights at the citadel is still the cenotaph raised by legionaries to commemorate their Drusus.

Through a series of incursions during the 4th century Alsace gradually lost its Belgic ethnic character of formerly Germanic tribes among Celts ruled by Romans and became predominantly influenced by the Alamanni. The Romans repeatedly reasserted control; however, the troops stationed at Mainz became chiefly non-Italic and the emperors had only one or two Italian ancestors in a pedigree that included chiefly peoples of the northern frontier.

The last emperor to station troops serving the western empire at Mainz was Valentinian III (reigned 425–455), who relied heavily on his "Magister militum per Gallias", Flavius Aëtius. By that time the army included large numbers of troops from the major Germanic confederacies along the Rhine, the Alamanni, the Saxons and the Franks. The Franks were an opponent that had risen to power and reputation among the Belgae of the lower Rhine during the 3rd century and repeatedly attempted to extend their influence upstream. In 358 the emperor Julian bought peace by giving them most of Germania Inferior, which they possessed anyway, and imposing service in the Roman army in exchange.

European factions in the time of master Aëtius included Celts, Goths, Franks, Saxons, Alamanni, Huns, Italians, and Alans as well as numerous other minor peoples. Aëtius played them all off against one another in a masterly effort to keep the peace under Roman sovereignty. He used Hunnic troops a number of times. At last a day of reckoning arrived between Aëtius and Attila, both commanding polyglot, multi-ethnic troops. Attila went through Alsace in 451, devastating the country and destroying Mainz and Triers with their Roman garrisons. Shortly after he was thwarted by Flavius Aëtius at the Battle of Châlons, the largest of the ancient world.

Aëtius was not to enjoy the victory long. He was assassinated in 454 by the hand of his employer, who in turn was stabbed to death by friends of Aëtius in 455. As far as the north was concerned this was the effective end of the Roman empire there. After some sanguinary but relatively brief contention a former subordinate of Aëtius, Ricimer, became emperor, taking the name Patrician. His father was a Suebian; his mother, a princess of the Visigoths. Patrician did not rule the north directly but set up a client province there, which functioned independently. The capital was at Soissons. Even then its status was equivocal. Many insisted it was the Kingdom of Soissons.

Previously the first of the Merovingians, Clodio, had been defeated by Aëtius at about 430. His son, Merovaeus, fought on the Roman side against Attila, and his son, Childeric, served in the domain of Soissons. Meanwhile, the Franks were gradually infiltrating and assuming power in this domain. They also moved up the Rhine and created a domain in the region of the former Germania Superior with capital at Cologne. They became known as the Ripuarian Franks as opposed to the Salian Franks. It is unlikely that much of a population transfer or displacement occurred. The former Belgae simply became Franks.

Events moved rapidly in the late 5th century. Clovis, son of Childeric, became king of the Salians in 481, ruling from Tournai. In 486 he defeated Syagrius, last governor of the Soissons domain, and took northern France. He extended his reign to Cambrai and Tongeren in 490–491, and repelled the Alamanni in 496. Also in that year he converted to non-Arian Christianity.

After the fall of the Western Roman Empire in 476, the Franks under the rule of Clovis I gained control over western Europe by the year 496. Clovis annexed the kingdom of Cologne in 508. Thereafter, Mainz, in its strategic position, became one of the bases of the Frankish kingdom. Mainz had sheltered a Christian community long before the conversion of Clovis. His successor Dagobert I reinforced the walls of Mainz and made it one of his seats. A solidus of Theodebert I (534–548) was minted at Mainz.

Charlemagne (768–814), through a succession of wars against other tribes, built a vast Frankian empire in Europe. Mainz from its central location became important to the empire and to Christianity. Meanwhile, language change was gradually working to divide the Franks. Mainz spoke a dialect termed Ripuarian. On the death of Charlemagne, distinctions between France and Germany began to be made. Mainz was not central any longer but was on the border, creating a question of the nationality to which it belonged, which descended into modern times as the question of Alsace-Lorraine.

In the early Middle Ages, Mainz was a centre for the Christianisation of the German and Slavic peoples. The first archbishop in Mainz, Boniface, was killed in 754 while trying to convert the Frisians to Christianity and is buried in Fulda. Boniface held a personal title of archbishop; Mainz became a regular archbishopric see in 781, when Boniface's successor Lullus was granted the pallium by Pope Adrian I. Harald Klak, king of Jutland, his family and followers, were baptized at Mainz in 826, in the abbey of St. Alban's. Other early archbishops of Mainz include Rabanus Maurus, the scholar and author, and Willigis (975–1011), who began construction on the current building of the Mainz Cathedral and founded the monastery of St. Stephan.

From the time of Willigis until the end of the Holy Roman Empire in 1806, the Archbishops of Mainz were archchancellors of the Empire and the most important of the seven Electors of the German emperor. Besides Rome, the diocese of Mainz today is the only diocese in the world with an episcopal see that is called a Holy See ("sancta sedes"). The Archbishops of Mainz traditionally were "primas germaniae", the substitutes of the Pope north of the Alps.

In 1244, Archbishop Siegfried III granted Mainz a city charter, which included the right of the citizens to establish and elect a city council. The city saw a feud between two archbishops in 1461, namely Diether von Isenburg, who was elected Archbishop by the cathedral chapter and supported by the citizens, and Adolf II von Nassau, who had been named archbishop for Mainz by the pope. In 1462, the Archbishop Adolf raided the city of Mainz, plundering and killing 400 inhabitants. At a tribunal, those who had survived lost all their property, which was then divided between those who promised to follow Adolf. Those who would not promise to follow Adolf (amongst them Johannes Gutenberg) were driven out of the town or thrown into prison. The new archbishop revoked the city charter of Mainz and put the city under his direct rule. Ironically, after the death of Adolf II his successor was again Diether von Isenburg, now legally elected by the chapter and named by the Pope.

The Jewish community of Mainz dates to the 10th century AD. It is noted for its religious education. Rabbi Gershom ben Judah (960–1040) taught there, among others. He concentrated on the study of the Talmud, creating a German Jewish tradition. Mainz is also the legendary home of the martyred Rabbi Amnon of Mainz, composer of the Unetanneh Tokef prayer. The Jews of Mainz, Speyer and Worms created a supreme council to set standards in Jewish law and education in the 12th century.

The city of Mainz responded to the Jewish population in a variety of ways, behaving, in a sense, in a bipolar fashion towards them. Sometimes they were allowed freedom and were protected; at other times, they were persecuted. The Jews were expelled in 1012, 1462 (after which they were invited to return), and in 1474. Jews were attacked in 1096 and by mobs in 1283. Outbreaks of the Black Death were usually blamed on the Jews, at which times they were massacred, such as the burning of about 6,000 Jews alive in 1349.

Nowadays the Jewish community is growing rapidly, and a new synagogue by the architect Manuel Herz was constructed in 2010 on the site of the one destroyed by the Nazis on "Kristallnacht" in 1938. The community itself has 1,034 members, according to the Central Council of Jews in Germany, and at least twice as many Jews altogether since many are unaffiliated with Judaism.

During the French Revolution, the French Revolutionary army occupied Mainz in 1792; the Archbishop of Mainz, Friedrich Karl Josef von Erthal, had already fled to Aschaffenburg by the time the French marched in. On 18 March 1793, the Jacobins of Mainz, with other German democrats from about 130 towns in the Rhenish Palatinate, proclaimed the 'Republic of Mainz'. Led by Georg Forster, representatives of the Mainz Republic in Paris requested political affiliation of the Mainz Republic with France, but too late: Prussia was not entirely happy with the idea of a democratic free state on German soil (although the French dominated Mainz was neither free nor democratic). Prussian troops had already occupied the area and besieged Mainz by the end of March, 1793. After a siege of 18 weeks, the French troops in Mainz surrendered on 23 July 1793; Prussians occupied the city and ended the Republic of Mainz. It came to the Battle of Mainz in 1795 between Austria and France. Members of the Mainz Jacobin Club were mistreated or imprisoned and punished for treason.

In 1797, the French returned. The army of Napoléon Bonaparte occupied the German territory to the west of the Rhine, and the Treaty of Campo Formio awarded France this entire area. On 17 February 1800, the French "Département du Mont-Tonnerre" was founded here, with Mainz as its capital, the Rhine being the new eastern frontier of la Grande Nation. Austria and Prussia could not but approve this new border with France in 1801. However, after several defeats in Europe during the next years, the weakened Napoléon and his troops had to leave Mainz in May 1814.

In 1816, the part of the former French Département which is known today as Rhenish Hesse () was awarded to the Hesse-Darmstadt, Mainz being the capital of the new Hessian province of Rhenish Hesse. From 1816 to 1866, to the German Confederation Mainz was the most important fortress in the defence against France, and had a strong garrison of Austrian, Prussian and Bavarian troops.

In the afternoon of 18 November 1857, a huge explosion rocked Mainz when the city's powder magazine, the "Pulverturm", exploded. Approximately 150 people were killed and at least 500 injured; 57 buildings were destroyed and a similar number severely damaged in what was to be known as the "Powder Tower Explosion" or "Powder Explosion".

During the Austro-Prussian War in 1866, Mainz was declared a neutral zone. After the founding of the German Empire in 1871, Mainz no longer was as important a stronghold, because in the war of 1870/71 France had lost the territory of Alsace-Lorraine to Germany (which France had occupied piece by piece 1630/1795), and this defined the new border between the two countries.

For centuries the inhabitants of the fortress of Mainz had suffered from a severe shortage of space which led to disease and other inconveniences. In 1872 Mayor Carl Wallau and the council of Mainz persuaded the military government to sign a contract to expand the city. Beginning in 1874, the city of Mainz assimilated the "Gartenfeld", an idyllic area of meadows and fields along the banks of the Rhine to the north of the rampart. The city expansion more than doubled the urban area which allowed Mainz to participate in the industrial revolution which had previously avoided the city for decades.

Eduard Kreyßig was the man who made this happen. Having been the master builder of the city of Mainz since 1865, Kreyßig had the vision for the new part of town, the "Neustadt". He also planned the first sewer system for the old part of town since Roman times and persuaded the city government to relocate the railway line from the Rhine side to the west end of the town. The main station was built from 1882 to 1884 according to the plans of Philipp Johann Berdellé.
The Mainz master builder constructed a number of state-of-the-art public buildings, including the Mainz town hall — which was the largest of its kind in Germany at that time — as well a synagogue, the Rhine harbour and a number of public baths and school buildings. Kreyßig's last work was Christ Church ("Christuskirche"), the largest Protestant church in the city and the first building constructed solely for the use of a Protestant congregation. In 1905 the demolition of the entire circumvallation and the Rheingauwall was taken in hand, according to imperial order of Wilhelm II.

During the German Revolution of 1918 the Mainz Workers' and Soldiers' Council was formed which ran the city from 9 November until the arrival of French troops under the terms of the occupation of the Rhineland agreed in the Armistice. The French occupation was confirmed by the Treaty of Versailles which went into effect 28 June 1919. The Rhineland (in which Mainz is located) was to be a demilitarized zone until 1935 and the French garrison, representing the "Triple Entente", was to stay until reparations were paid.

In 1923 Mainz participated in the Rhineland separatist movement that proclaimed a republic in the Rhineland. It collapsed in 1924. The French withdrew on 30 June 1930. Adolf Hitler became chancellor of Germany in January, 1933 and his political opponents, especially those of the Social Democratic Party, were either incarcerated or murdered. Some were able to move away from Mainz in time. One was the political organizer for the SPD, Friedrich Kellner, who went to Laubach, where as the chief justice inspector of the district court he continued his opposition against the Nazis by recording their misdeeds in a 900-page diary.

In March, 1933, a detachment from the National Socialist Party in Worms brought the party to Mainz. They hoisted the swastika on all public buildings and began to denounce the Jewish population in the newspapers. In 1936, the Nazis remilitarized the Rhineland with great fanfare, the first move of Nazi Germany's meteoric expansion. The former Triple Entente took no action.

During World War II the citadel at Mainz hosted the Oflag XII-B prisoner of war camp.

The Bishop of Mainz, Albert Stohr, formed an organization to help Jews escape from Germany.

During World War II, more than 30 air raids destroyed about 80 percent of the city's center, including most of the historic buildings. Mainz was captured on 22 March 1945 against uneven German resistance (staunch in some sectors and weak in other parts of the city) by the 90th Infantry Division under William A. McNulty, a formation of the XII Corps under Third Army commanded by General George S. Patton, Jr. Patton used the ancient strategic gateway through "Germania Superior" to cross the Rhine south of Mainz, drive down the Danube towards Czechoslovakia and end the possibility of a Bavarian redoubt crossing the Alps in Austria when the war ended.

From 1945 to 1949, the city was part of the French zone of occupation. When the federal state of Rhineland-Palatinate was founded on 30 August 1946 by the commander of the French army on the French occupation zone Marie Pierre Kœnig, Mainz became capital of the new state. In 1962, the diarist, Friedrich Kellner, returned to spend his last years in Mainz. His life in Mainz, and the impact of his writings, is the subject of the Canadian documentary "".

Following the withdrawal of French forces from Mainz, the United States Army Europe occupied the military bases in Mainz. Today USAREUR only occupies McCulley Barracks in Wackernheim and the Mainz Sand Dunes for training area. Mainz is home to the headquarters of the "Bundeswehr"'s "Landeskommando" Rhineland-Palatinate and other units.

The following list shows the largest minority groups in Mainz :

The destruction caused by the bombing of Mainz during World War II led to the largest building boom in the history of the town. During the last war in Germany, more than 30 air raids destroyed about 80 percent of the city's center, including most of the historic buildings. The destructive attack on the afternoon of 27 February 1945 remains the most destructive of all 33 bombings that Mainz has suffered in World War II in the collective memory of most of the population living then. The air raid caused most of the dead and made an already hard-hit city largely leveled.

Nevertheless, the post-war reconstruction took place very slowly. While cities such as Frankfurt had been rebuilt fast by a central authority, only individual efforts were initially successful in rebuilding Mainz. The reason for this was that the French wanted Mainz to expand and to become a model city. Mainz lay within the French-controlled sector of Germany and it was a French architect and town-planner, Marcel Lods, who produced a Le Corbusier-style plan of an ideal architecture. But the very first interest of the inhabitants was the restoration of housing areas. Even after the failure of the model city plans it was the initiative of the French (founding of the Johannes Gutenberg University of Mainz, elevation of Mainz to the state capital of Rhineland-Palatinate, the early resumption of the Mainz carnival) driving the city in a positive development after the war. The City Plan of 1958 by Ernst May allowed a regulated reconstruction for the first time. In 1950, the seat of the government of Rhineland-Palatinate had been transferred to the new Mainz and in 1963 the seat of the new ZDF, notable architects were Adolf Bayer, Richard Jörg and Egon Hartmann. At the time of the two-thousand-years-anniversary in 1962 the city was largely reconstructed. During the 1950s and 1960s the Oberstadt had been extended, Münchfeld and Lerchenberg added as suburbs, the Altstadttangente (intersection of the old town), new neighbourhoods as Westring and Südring contributed to the extension. By 1970 there remained only a few ruins. The new town hall of Mainz had been designed by Arne Jacobsen and finished by Dissing+Weitling. The town used Jacobsens activity for the Danish Novo erecting a new office and warehouse building to contact him. The urban renewal of the old town changed the inner city. In the framework of the preparation of the cathedrals millennium, pedestrian zones were developed around the cathedral, in northern direction to the Neubrunnenplatz and in southern direction across the Leichhof to the Augustinerstraße and Kirschgarten. The 1980s brought the renewal of the façades on the Markt and a new inner-city neighbourhood on the Kästrich. During the 1990s the Kisselberg between Gonsenheim and Bretzenheim, the "Fort Malakoff Center" at the site of the old police barracks, the renewal of the Main Station and the demolition of the first post-war shopping center at the Markt followed by the erection of a new historicising building at the same place.
The city of Mainz is divided into 15 local districts according to the main statute of the city of Mainz. Each local district has a district administration of 13 members and a directly elected mayor, who is the chairman of the district administration. This local council decides on important issues affecting the local area, however, the final decision on new policies is made by the Mainz's municipal council.

In accordance with section 29 paragraph 2 Local Government Act of Rhineland-Palatinate, which refers to municipalities of more than 150,000 inhabitants, the city council has 60 members.

Districts of the town are:
Until 1945, the districts of Bischofsheim (now an independent town), Ginsheim-Gustavsburg (which together are an independent town) belonged to Mainz. The former suburbs Amöneburg, Kastel, and Kostheim — (in short, "AKK") are now administrated by the city of Wiesbaden (on the north bank of the river). The AKK was separated from Mainz when the Rhine was designated the boundary between the French occupation zone (the later state of Rhineland-Palatinate) and the U.S. occupation zone (Hesse) in 1945.

The coat of arms of Mainz is derived from the coat of arms of the Archbishops of Mainz and features two six-spoked silver wheels connected by a silver cross on a red background.

Mainz is home to a Carnival, the "Mainzer Fassenacht" or "Fastnacht", which has developed since the early 19th century. Carnival in Mainz has its roots in the criticism of social and political injustices under the shelter of cap and bells. Today, the uniforms of many traditional Carnival clubs still imitate and caricature the uniforms of the French and Prussian troops of the past. The height of the carnival season is on Rosenmontag ("rose Monday"), when there is a large parade in Mainz, with more than 500,000 people celebrating in the streets.

The first ever Katholikentag, a festival-like gathering of German Catholics, was held in Mainz in 1848.
Johannes Gutenberg, credited with the invention of the modern printing press with movable type, was born here and died here. Since 1968 the Mainzer Johannisnacht commemorates the person Johannes Gutenberg in his native city. The Mainz University, which was refounded in 1946, is named after Gutenberg; the earlier University of Mainz that dated back to 1477 had been closed down by Napoleon's troops in 1798.

Mainz was one of three important centers of Jewish theology and learning in Central Europe during the Middle Ages. Known collectively as "Shum", the cities of Speyer, Worms and Mainz played a key role in the preservation and propagation of Talmudic scholarship.

The city is the seat of Zweites Deutsches Fernsehen (literally, "Second German Television", ZDF), one of two federal nationwide TV broadcasters. There are also a couple of radio stations based in Mainz.

Other cultural aspects of the city include:The local football club 1. FSV Mainz 05 has a long history in the German football leagues. Since 2004 it has competed in the Bundesliga (First German soccer league) except a break in second level in 2007–08 season. Mainz is closely associated with renowned coach Jürgen Klopp, who spent the vast majority of his playing career at the club and was also the manager for seven years, leading the club to Bundesliga football for the first time. After leaving Mainz Klopp went on to win two Bundesliga titles and reaching a Champions League final with Borussia Dortmund. In the summer 2011 the club opened its new stadium called Coface Arena. Further relevant football clubs are TSV Schott Mainz, SV Gonsenheim, Fontana Finthen, FC Fortuna Mombach and FVgg Mombach 03.

The local wrestling club ASV Mainz 1888 is currently in the top division of team wrestling in Germany, the Bundesliga. In 1973, 1977 and 2012 the ASV Mainz 1888 won the German championship.

In 2007 the Mainz Athletics won the German Men's Championship in baseball.

As a result of the 2008 invasion of Georgia by Russian troops, Mainz acted as a neutral venue for the Georgian Vs Republic of Ireland football game.

The biggest basketball club in the city is the ASC Theresianum Mainz. Its men's team is playing in the Regionalliga and its women's team is playing in the 2.DBBL.

Universitäts-Sportclub Mainz (University Sports Club Mainz) is a German sports club based in Mainz. It was founded on 9 September 1959 by Berno Wischmann primarily for students of the University of Mainz. It is considered one of the most powerful Athletics Sports clubs in Germany. 50 athletes of USC have distinguished themselves in a half-century in club history at Olympic Games, World and European Championships. In particular in the decathlon dominated USC athletes for decades: Already at the European Championships in Budapest in 1966 Mainz won three (Werner von Moltke, Jörg Mattheis and Horst Beyer) all decathlon medals. In the all-time list of the USC, there are nine athletes who have achieved more than 8,000 points – at the head of Siegfried Wentz (8762 points in 1983) and Guido Kratschmer (1980 world record with 8667 points). Most successful athlete of the association is more fighter, sprinter and long jumper Ingrid Becker (Olympic champion in 1968 in the pentathlon and Olympic champion in 1972 in the 4 × 100 Metres Relay and European champion in 1971 in the long jump). Most famous athletes of the present are the sprinter Marion Wagner (world champion in 2001 in the 4 × 100 Metres Relay) and the pole vaulters Carolin Hingst (Eighth of the 2008 Olympics in Beijing) and Anna Battke.

Three world titles adorn the balance of USC Mainz. For the discus thrower Lars Riedel attended (1991 and 1993) and the already mentioned sprinter Marion Wagner (2001). Added to 5 titles at the European Championships, a total of 65 international medals and 260 victories at the German Athletics Championships.

The players of USC's basketball section played from the season 1968/69 to the season 1974/75 in the National Basketball League (BBL) of the German Basketball Federation (DBB). As a finalist to winning the DBB Cup in 1971 USC Mainz played in the 1971–72 FIBA European Cup Winners' Cup against the Italian Cup winners of Fides Napoli.

The Baseball and Softball Club Mainz Athletics is a German baseball and softball club located in the city of Mainz in Rhineland-Palatinate. The Athletics is one of the largest clubs in the Baseball-Bundesliga Süd in terms of membership, claiming to have hundreds of active players. The club has played in the Baseball-Bundesliga for more than two decades, and has won the German Championship in 2007 and 2016.

Mainz is one of the centers of the German wine economy as a center for wine trade and the seat of the state's wine minister. Due to the importance and history of the wine industry for the federal state, Rhineland-Palatinate is the only state to have such a department.

Since 2008, the city is also member of the Great Wine Capitals Global Network (GWC), an association of well-known wineculture-cities of the world.
Many wine traders also work in the town. The sparkling wine producer Kupferberg produced in Mainz-Hechtsheim and even Henkell — now located on the other side of the river Rhine — had been founded once in Mainz. The famous Blue Nun, one of the first branded wines, had been marketed by the family Sichel.

Mainz had been a wine growing region since Roman times and the image of the wine town Mainz is fostered by the tourist center. The "Haus des Deutschen Weines" (English: House of German Wine), is located in beside the theater. The Mainzer Weinmarkt (wine market) is one of the great wine fairs in Germany.

The Schott AG, one of the world's largest glass manufactures, as well as the Werner & Mertz, a large chemical factory, are based in Mainz. Other companies such as IBM, QUINN Plastics, or Novo Nordisk have their German administration in Mainz as well.

Johann-Joseph Krug, founder of France's famous Krug champagne house in 1843, was born in Mainz in 1800.

Mainz is a major transport hub in southern Germany. It is an important component in European distribution, as it has the fifth largest inter-modal port in Germany. The Port of Mainz, now handling mainly containers, is a sizable industrial area to the north of the city, along the banks of the Rhine. In order to open up space along the city's riverfront for residential development, it was shifted further northwards in 2010.

Mainz Central Station or "Mainz Hauptbahnhof", is frequented by 80,000 travelers and visitors each day and is therefore one of the busiest 21 stations in Germany. It is a stop for the S-Bahn line S8 of the Rhein-Main-Verkehrsverbund. Additionally, the Mainbahn line to Frankfurt Hbf starts at the station. It is served by 440 daily local and regional trains (StadtExpress, RE and RB) and 78 long-distance trains (IC, EC and ICE). Intercity-Express lines connect Mainz with Frankfurt (Main), Karlsruhe Hbf, Worms Hauptbahnhof and Koblenz Hauptbahnhof. It is a terminus of the West Rhine Railway and the Mainz–Ludwigshafen railway, as well as the Alzey–Mainz Railway erected by the Hessische Ludwigsbahn in 1871. Access to the East Rhine Railway is provided by the Kaiserbrücke, a railway bridge across the Rhine at the north end of Mainz.

The station is an interchange point for the Mainz tramway network, and an important bus junction for the city and region (RNN, ORN and MVG).

Mainz offers a wide array of bicycle transportation facilities and events, including several miles of on-street bike lanes. The Rheinradweg (Rhine Cycle Route) is an international cycle route, running from the source to the mouth of the Rhine, traversing four countries at a distance of. Another cycling tour runs towards Bingen and further to the Middle Rhine, a UNESCO World Heritage Site (2002).

Mainz is served by Frankfurt Airport, the busiest airport by passenger traffic in Germany by far, the third busiest in Europe and the ninth busiest worldwide in 2009. Located about east of Mainz, it is connected to the city by an S-Bahn line.

The small Mainz Finthen Airport, located just southwest of Mainz, is used by general aviation only. Another airport, Frankfurt-Hahn Airport located about west of Mainz, is served by a few low-cost carriers.Mainz is twinned with:
Mainz has a number of different names in other languages and dialects. In Latin it is known as'or'and, in the local West Middle German dialect, it is "Määnz" or "Meenz". It is known as'in French,'in Italian,'in Spanish,'in Portuguese,'in Polish, "Magentza" () in Yiddish, and'in Czech and Slovakian. Its former English name Mentz is shared by two American cities named in its honor.