Guichen

Guichen
Gischen (Gallo)
Gwizien (Breton)
Church of Guichen
Location of Guichen
Guichen
Guichen
Coordinates: 47°58′05″N 1°47′38″W / 47.9681°N 1.7939°W / 47.9681; -1.7939
CountryFrance
RegionBrittany
DepartmentIlle-et-Vilaine
ArrondissementRedon
CantonGuichen
IntercommunalityVallons de Haute-Bretagne
Government
  Mayor (20202026) Dominique Delamarre
Area
1
42.99 km2 (16.60 sq mi)
Population
 (2022)
9,203
  Density210/km2 (550/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
35126 /35580
Elevation7–107 m (23–351 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Guichen (French pronunciation: [ɡiʃɛ̃]; Breton: Gwizien; Gallo: Gischen) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.