
Official website (http://www.mairie-ollainville91.fr/)
OverviewAI-generated
Ollainville is a commune in France, situated within the Essonne department and the arrondissement of Palaiseau. It has historically been part of the Seine-et-Oise administrative entity. The municipality is located in the Île-de-France region and shares borders with Marcoussis, Arpajon, Bruyères-le-Châtel, and Égly. Its associated electoral district is the canton of Arpajon.
The commune covers an area of 11.33 square kilometers and sits at an elevation of 168 meters above sea level. Population figures vary by source, with one listing 5,455 residents and another citing 4,883. The postal code for the area is 91340. Ollainville is a member of the Concours des villes et villages fleuris.
Synthesized by Vinony from 41 facts across 7 sources: Wikidata, Openweathermap, OpenStreetMap, GeoNames, Firecrawl, Vinony graph, Geo. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Weather now
cached 19h agoPlace details
- Locality
- La Roche
- Region
- Île-de-France
- Country
- France
- Population
- 4,883
via OpenStreetMap · GeoNames
Key facts
- Country
- France
- Region
- Île-de-France
- Department
- Essonne
- Arrondissement
- Palaiseau
- Canton
- Arpajon
- Intercommunality
- CA Cœur d'Essonne
- Mayor 2020 2026
- Jean-Michel Giraudeau
- Area
- 11.33 km (4.37 sq mi)
- Population 2023
- 5,455
- Density
- 481.5/km (1,247/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)
via Wikipedia infobox
Official website

Ollainville -
mairie-ollainville91.fr →Link to the official site · 9,359 chars · not written by Vinony
~1 min read
Encyclopedic overview
Ollainville ( French pronunciation: [ɔlɛ̃vil] ) is a commune in the Essonne department in Île-de-France in northern France.
Population
Excerpted from Wikipedia’s “Ollainville” article, available under the CC BY-SA 4.0 licence.