|Canton||Le Grand Lemps|
|Community association||Pays Voironnais|
|surface||17.53 km 2|
|Residents||2,337 (January 1, 2017)|
|Population density||133 inhabitants / km 2|
Chirens is a French commune with 2,337 inhabitants (as of January 1 2017) in the department of Isère in the region Auvergne Rhône-Alpes ; it belongs to the Arrondissement of Grenoble and the canton of Le Grand-Lemps . The inhabitants are called Chirennois .
Chirens is located about 28 kilometers northwest of Grenoble on the edge of the Chartreuse Regional Nature Park and on the Ainan River . Chirens is surrounded by the neighboring communities of Bilieu in the north, Massieu in the northeast, Saint-Nicolas-de-Macharin in the east, Voiron in the southeast, La Murette in the south, Saint-Blaise-du-Buis in the south-west, Apprieu in the west and south-west and Charavines in the west and northwest.
- Clermont Castle, former ancestral seat of the Clermont-Tonnerre family , only preserved as a ruin with a tower and remains of walls, Monument historique since 1983
- Notre-Dame-du-Gayet priory, founded in the 11th century, monument historique since 1973
- Notre-Dame church
- Motte (Wallburg) by Le Châtelard, Monument historique since 2004