Ollainville | |
|---|---|
 The town hall in Ollainville | |
.svg) Coat of arms | |
Location of Ollainville  | |
  Ollainville  Ollainville | |
| Coordinates: 48°35′30″N 2°12′59″E / 48.5916°N 2.2163°E | |
| Country | France |
| Region | Île-de-France |
| Department | Essonne |
| Arrondissement | Palaiseau |
| Canton | Arpajon |
| Intercommunality | CA Cœur d'Essonne |
| Government | |
| • Mayor (2020–2026) | Jean-Michel Giraudeau[1] |
| Area 1 | 11.33 km2 (4.37 sq mi) |
| Population (2021)[2] | 5,314 |
| • Density | 470/km2 (1,200/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 91461 /91340 |
| Elevation | 46–168 m (151–551 ft) |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Ollainville (French pronunciation: [ɔlɛ̃vil] ⓘ) is a commune in the Essonne department in Île-de-France in northern France.
