Boissy-sous-Saint-Yon

Boissy-sous-Saint-Yon
The town hall of Boissy-sous-Saint-Yon
Location of Boissy-sous-Saint-Yon
Boissy-sous-Saint-Yon
Boissy-sous-Saint-Yon
Coordinates: 48°33′31″N 2°12′31″E / 48.5586°N 2.2086°E / 48.5586; 2.2086
CountryFrance
RegionÎle-de-France
DepartmentEssonne
ArrondissementÉtampes
CantonArpajon
IntercommunalityEntre Juine et Renarde
Government
  Mayor (20232026) Jean-Marc Pichon
Area
1
8.04 km2 (3.10 sq mi)
Population
 (2022)
3,855
  Density480/km2 (1,200/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
91085 /91790
Elevation69–156 m (226–512 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Boissy-sous-Saint-Yon (French pronunciation: [bwasi su sɛ̃.t‿jɔ̃] , literally Boissy under Saint-Yon) is a commune in the Essonne department in Île-de-France in northern France.