Boulogne-Billancourt | |
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Subprefecture and commune | |
Coordinates: 48°50′07″N 2°14′27″E / 48.83520°N 02.2409°E | |
Country | France |
Region | Île-de-France |
Department | Hauts-de-Seine |
Arrondissement | Boulogne-Billancourt |
Canton | Boulogne-Billancourt-1 and 2 |
Intercommunality | Grand Paris |
Government | |
• Mayor (2020–2026) | Pierre-Christophe Baguet[1] (LR) |
Area 1 | 6.17 km2 (2.38 sq mi) |
Population (2021)[2] | 119,808 |
• Density | 19,000/km2 (50,000/sq mi) |
Time zone | UTC+01:00 (CET) |
• Summer (DST) | UTC+02:00 (CEST) |
INSEE/Postal code | 92012 /92100 |
Elevation | 28–40 m (92–131 ft) |
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. |
Boulogne-Billancourt (French pronunciation: [bulɔɲ bijɑ̃kuʁ] ⓘ; often colloquially called simply Boulogne, until 1924 Boulogne-sur-Seine, [bulɔɲ syʁ sɛn]) is a wealthy and prestigious commune in the western suburbs of Paris, France, located 8.2 km (5 mi) from the centre of Paris. It is a subprefecture of the Hauts-de-Seine department and thus the seat of the larger arrondissement of Boulogne-Billancourt. It is also part of the Métropole du Grand Paris. Boulogne-Billancourt includes one island in the Seine: Île Seguin.
Boulogne-Billancourt is one of the wealthiest regions in the Parisian area and in France.[3] Formerly an important industrial site, it has successfully reconverted into business services and is now home to major communication companies headquartered in the Val de Seine business district.