Avignon (, US also , French: [aviɲɔ̃] ; Provençal: Avinhon (Classical norm) or Avignoun (Mistralian norm), IPA: [aviˈɲun]; Latin: Avenio) is the prefecture of the Vaucluse department in the Provence-Alpes-Côte d'Azur region of southern France. Located on the left bank of the river Rhône, the commune has a population of 92,188 (2023), with about 16,000 (estimate from Avignon's municipal services) living in the ancient town centre enclosed by its medieval walls.
Between 1309 and 1377, during the Avignon Papacy, seven successive popes resided in Avignon and in 1348 Pope Clement VI bought the town from Joanna I of Naples. Papal control persisted until 1791 when during the French Revolution it became part of France. This is why Avignon is also known as La Cité des Papes ('The City of the Popes').
The city is the capital of the Vaucluse department and is one of the constituent municipalities in the Vaucluse and the Gard of the urban agglomeration of Grand Avignon with a combined population of 199,932 (2023).
The historic centre is one of the few cities in France to have preserved its mediaeval city walls and includes the Palais des Papes, Avignon Cathedral and the Pont d'Avignon. Due to its architectural and cultural importance during the 14th and 15th centuries, it was listed by UNESCO as a World Heritage Site in 1995. The medieval monuments and the annual Festival d'Avignon – one of the world's largest festivals for performing arts – have helped to make the town a major centre for tourism.
The earliest forms of the name were reported by the Greeks: Аὐενιὼν Aueniṑn (Stephen of Byzantium, Strabo, IV, 1, 11) and Άουεννίων Aouenníōn (Ptolemy II, x).
The Roman name Avennĭo Cavărum (Mela, II, 575, Pliny III, 36), i.e. "Avignon of Cavares", accurately shows that Avignon was one of the three cities of the Celtic-Ligurian tribe of Cavares, along with Cavaillon and Orange.
The current name dates to a pre-Indo-European or pre-Latin theme ab-ên with the suffix -i-ōn(e). This theme would be a hydronym—i.e. a name linked to the river (Rhône), but perhaps also an oronym of terrain (the Rocher des Doms).
The Auenion of the 1st century BC was Latinized to Avennĭo (or Avēnĭo), -ōnis in the 1st century and is written Avinhon in classic Occitan spelling or Avignoun in Mistralian spelling. The inhabitants of the commune are called avinhonencs or avignounen in both standard Occitan and Provençal dialect.
Avignon is on the left bank of the Rhône river, a few kilometres above its confluence with the Durance, about 580 km (360 mi) south-east of Paris, 229 km (142 mi) south of Lyon and 85 km (53 mi) north-north-west of Marseille. On the west it shares a border with the department of Gard and the communes of Villeneuve-lès-Avignon and Les Angles and to the south it borders the department of Bouches-du-Rhône and the communes of Barbentane, Rognonas, Châteaurenard, and Noves.
The city is in the vicinity of Orange (north), Carpentras (north-east), Salon-de-Provence, Aix-en-Provence, Marseille (all south-east), Arles (south), Nîmes and Montpellier (both south-west). Directly contiguous to the east and north are the communes of Caumont-sur-Durance, Morières-lès-Avignon, Le Pontet, and Sorgues.
The region around Avignon is very rich in limestone which is used for building material. For example, the current city walls, measuring 4,330 metres long, were built with the soft limestone abundant in the region called mollasse burdigalienne.
Enclosed by the city walls, the Rocher des Doms is a limestone elevation of Urgonian type, 35 metres high (and therefore safe from flooding of the Rhone which it overlooks) and is the original core of the city. Several limestone massifs are present around the commune (the Massif des Angles, Villeneuve-lès-Avignon, Alpilles...) and they are partly the result of the oceanisation of the Ligurian-Provençal basin following the migration of the Sardo-Corsican block.
The other significant elevation in the commune is the Montfavet Hill—a wooded hill in the east of the commune.
The Rhone Valley is an old alluvial zone: loose deposits cover much of the ground. It consists of sandy alluvium more or less coloured with pebbles consisting mainly of siliceous rocks. The islands in the Rhone, such as the Île de la Barthelasse, were created by the accumulation of alluvial deposits and also by human intervention. The relief is quite low despite the creation of mounds allowing local protection from flooding.
In the land around the city there are clay, silt, sand, and limestone present.
The Rhone passes the western edge of the city, but is divided into two branches: the Petit Rhône, or "dead arm", for the part that passes next to Avignon and the Grand Rhône, or "live arm", for the western channel which passes Villeneuve-lès-Avignon in the Gard department. The two branches are separated by an island, the Île de la Barthelasse. The southernmost tip of the Île de la Barthelasse once formed of a separated island, the L'Île de Piot.
The banks of the Rhone and the Île de la Barthelasse are often subject to flooding during autumn and March. The publication Floods in France since the 6th century until today – research and documentation by Maurice Champion tells about a number of them (until 1862, the flood of 1856 was one of the largest, which destroyed part of the walls). They have never really stopped as shown by the floods in 1943–1944 and again on 23 January 1955 and remain important today—such as the floods of 2 December 2003. As a result, a new risk mapping has been developed.
The Durance flows along the southern boundary of the commune into the Rhone and marks the departmental boundary with Bouches-du-Rhône. It is a river that is considered "capricious" and once feared for its floods (it was once called the "3rd scourge of Provence" as well as for its low water: the Durance has both Alpine and Mediterranean morphology which is unusual.