Montfort-l'Amaury

Montfort-l'Amaury
Town hall
Location of Montfort-l'Amaury
Montfort-l'Amaury
Montfort-l'Amaury
Coordinates: 48°46′40″N 1°48′36″E / 48.7778°N 1.81°E / 48.7778; 1.81
CountryFrance
RegionÎle-de-France
DepartmentYvelines
ArrondissementRambouillet
CantonAubergenville
IntercommunalityCC Cœur d'Yvelines
Government
  Mayor (20202026) Hervé Planchenault
Area
1
5.71 km2 (2.20 sq mi)
Population
 (2022)
2,790
  Density490/km2 (1,300/sq mi)
DemonymMontfortois
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
78420 /78490
Elevation98–183 m (322–600 ft)
Websitewww.montfortlamaury.fr
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Montfort-l'Amaury (French pronunciation: [mɔ̃fɔʁ lamoʁi]) is a commune in the Yvelines department in the Île-de-France region, Northern France. It is located 20 km (12 mi) north of Rambouillet. The name comes from Amaury I de Montfort, the first seigneur (lord) of Montfort.