Watermael-Boitsfort
Watermael-Boitsfort 
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Watermael-Boitsfort's Municipal Hall, built in 1845  | |
Location of Watermael-Boitsfort  | |
| Coordinates: 50°48′N 04°25′E / 50.800°N 4.417°E | |
| Country | Belgium | 
| Community | Flemish Community French Community  | 
| Region | Brussels-Capital | 
| Arrondissement | Brussels-Capital | 
| Government | |
| • Governing party/ies | Ecolo-Groen, MR-GM | 
| Area | |
 • Total  | 12.97 km2 (5.01 sq mi) | 
| Population  (2020-01-01)  | |
 • Total  | 25,332 | 
| • Density | 2,000/km2 (5,100/sq mi) | 
| Postal codes | 1170  | 
| NIS code | 21017  | 
| Area codes | 02 | 
| Website | www.watermael-boitsfort.be (in French) www.watermaal-bosvoorde.be (in Dutch)  | 
Watermael-Boitsfort (French, pronounced [watɛʁmal bwafɔʁ] ⓘ) or Watermaal-Bosvoorde (Dutch, pronounced [ˈʋaːtərmaːl ˈbɔsfoːrdə] ⓘ; archaic spelling: Watermael-Boschvoorde), often simply called Boitsfort in French or Bosvoorde in Dutch, is one of the 19 municipalities of the Brussels-Capital Region, Belgium. Located in the south-eastern part of the region, it is bordered by Auderghem, the City of Brussels (namely the Bois de la Cambre/Ter Kamerenbos), Ixelles, and Uccle, as well as the Flemish municipalities of Hoeilaart, Overijse and Sint-Genesius-Rode. In common with all of Brussels' municipalities, it is legally bilingual (French–Dutch).
As of 1 January 2022, the municipality had a population of 25,187 inhabitants. The total area is 12.97 km2 (5.01 sq mi) of which 58% is covered by the Sonian Forest, which gives a population density of 1,942/km2 (5,030/sq mi), four times less than the average of Brussels. Its average annual income per inhabitant is also the highest in the region (€25,063 in 2020).