Longjumeau

Longjumeau
Commune
The town hall in Longjumeau
Coat of arms
Location of Longjumeau
Longjumeau Longjumeau
Coordinates: 48°41′39″N 2°17′45″E
Country	France
Region	Île-de-France
Department	Essonne
Arrondissement	Palaiseau
Canton	Longjumeau
Intercommunality	Paris-Saclay
Government
• Mayor (2020–2026)	Sandrine Gelot
Area 1	4.84 km2 (1.87 sq mi)
Population  (Jan. 2019)	21,269
• Density	4,400/km2 (11,000/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	91345 /91160
Elevation	40–93 m (131–305 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Longjumeau is a commune. It is in Île-de-France in the Essonne department in north France.