Châteaugiron

Châteaugiron Chaujon (Gallo) Kastell-Geron (Breton)
Commune
Castle of Châteaugiron
Flag Coat of arms
Location of Châteaugiron
Châteaugiron Châteaugiron
Coordinates: 48°02′56″N 1°30′07″W
Country	France
Region	Brittany
Department	Ille-et-Vilaine
Arrondissement	Rennes
Canton	Châteaugiron
Intercommunality	Pays de Châteaugiron
Government
• Mayor (2020–2026)	Yves Renault
Area 1	23.52 km2 (9.08 sq mi)
Population  (2023)	10,845
• Density	461.1/km2 (1,194/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	35069 /35410
Elevation	28–78 m (92–256 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Châteaugiron (French: [ʃɑtoʒiʁɔ̃]; Breton: Kastell-Geron; Gallo: Chaujon) is a commune in the Ille-et-Vilaine department of Brittany in northwestern France. It extended on 1 January 2017 by merging with the former communes of Saint-Aubin-du-Pavail and Ossé.

Population

Inhabitants of Châteaugiron are called Castelgironnais and Castelgironnaises in French.

Historical population Year Pop. ±% p.a. 1968 2,802 —     1975 3,061 +1.27% 1982 4,316 +5.03% 1990 5,368 +2.76% 1999 6,863 +2.77% 2007 8,221 +2.28% 2012 8,928 +1.66% 2017 9,966 +2.22% 2023 10,845 +1.42% Populations of the area corresponding with the commune of Châteaugiron at 1 January 2025. Source: INSEE

Sister cities

• Puszczykowo, Poland

Gallery

• 
  Town hall
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See also

• Communes of the Ille-et-Vilaine department

External links

• Official website (in French)
• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)
• Mayors of Ille-et-Vilaine Association Archived 14 January 2012 at the Wayback Machine (in French)