Guilherand-Granges (French pronunciation: [ɡijʁɑ̃ ɡʁɑ̃ʒ]; Vivaro-Alpine: Guilharand e las Granjas) is a commune in the Ardèche department in southern France. It is a suburb of Valence, Drôme. It is one of the most populous commune in the Ardéche department, after Annonay and Aubenas, and before Tournon-sur-Rhône.

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Guilherand-Granges
Commune
The road into Guilherand-Granges
Coat of arms
Location of Guilherand-Granges
Guilherand-Granges Show map of France Guilherand-Granges Show map of Auvergne-Rhône-Alpes
Coordinates: 44°56′07″N 4°52′32″E
Country	France
Region	Auvergne-Rhône-Alpes
Department	Ardèche
Arrondissement	Tournon-sur-Rhône
Canton	Guilherand-Granges
Intercommunality	Rhône Crussol
Government
• Mayor (2020–2026)	Sylvie Gaucher[1]
Area 1	6.55 km2 (2.53 sq mi)
Population  (2021)[2]	11,203
• Density	1,700/km2 (4,400/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	07102 /07500
Elevation	106–407 m (348–1,335 ft) (avg. 123 m or 404 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

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• Communes of the Ardèche department