Ille-et-Vilaine

Ille-et-Vilaine
Ill-e-Vilaenn (Gallo)
Il-ha-Gwilen (Breton)
The river Vilaine flowing through Rennes
Location of Ille-et-Vilaine in France
Coordinates: 48°10′N 01°40′W / 48.167°N 1.667°W / 48.167; -1.667
CountryFrance
RegionBrittany
PrefectureRennes
SubprefecturesFougères
Redon
Saint-Malo
Government
 • President of the Departmental CouncilJean-Luc Chenut (PS)
Area
 • Total
6,775 km2 (2,616 sq mi)
Population
 (2023)
 • Total
1,120,666
 • Rank21st
 • Density165.4/km2 (428.4/sq mi)
Time zoneUTC+1 (CET)
 • Summer (DST)UTC+2 (CEST)
ISO 3166 codeFR-35
Department number35
Arrondissements4
Cantons27
Communes333
^1 French Land Register data, which exclude estuaries, and lakes, ponds, and glaciers larger than 1 km2

Ille-et-Vilaine (French: [il e vilɛn] ; Gallo: Ill-e-Vilaenn; Breton: Il-ha-Gwilen) is a department of France, located in the region of Brittany in the northwest of the country. It is named after its two main rivers, the Ille and the Vilaine. It had a population of 1,079,498 in 2019.