Boissy-sous-Saint-Yon

Boissy-sous-Saint-Yon
Commune
The town hall in Boissy-sous-Saint-Yon
Coat of arms
Location of Boissy-sous-Saint-Yon
Boissy-sous-Saint-Yon Boissy-sous-Saint-Yon
Coordinates: 48°33′31″N 2°12′31″E
Country	France
Region	Île-de-France
Department	Essonne
Arrondissement	Étampes
Canton	Arpajon
Intercommunality	Entre Juine et Renarde
Government
• Mayor (2020–2026)	Raoul Saada
Area 1	8.04 km2 (3.10 sq mi)
Population  (Jan. 2019)	3,828
• Density	480/km2 (1,200/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	91085 /91790
Elevation	69–156 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 is a commune. It is in Île-de-France in the Essonne department in north France.