Châteauneuf-sur-Isère

Châteauneuf-sur-Isère (French: [ʃɑtonœf syʁ izɛʁ]; Vivaro-Alpine: Chasteunuòu d'Isèra) is a commune in the Drôme department in southeastern France.

Châteauneuf-sur-Isère Chasteunuòu d'Isèra (Occitan)
Commune
The chapel of Saint Hugues
Coat of arms
Location of Châteauneuf-sur-Isère
Châteauneuf-sur-Isère Show map of France Châteauneuf-sur-Isère Show map of Auvergne-Rhône-Alpes
Coordinates: 45°00′53″N 4°56′07″E
Country	France
Region	Auvergne-Rhône-Alpes
Department	Drôme
Arrondissement	Valence
Canton	Tain-l'Hermitage
Intercommunality	CA Valence Romans Agglo
Government
• Mayor (2025–2026)	Agnès Jaubert[1]
Area 1	45.57 km2 (17.59 sq mi)
Population  (2022)[2]	4,159
• Density	91/km2 (240/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	26084 /26300
Elevation	111–237 m (364–778 ft) (avg. 155 m or 509 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Population

Historical population

Year	Pop.	±% p.a.
1968	2,150	—
1975	2,012	−0.94%
1982	2,591	+3.68%
1990	3,031	+1.98%
1999	3,285	+0.90%
2007	3,621	+1.22%
2012	3,790	+0.92%
2017	3,875	+0.44%
Source: INSEE[3]

Personalities

It was the birthplace of St. Hugh of Châteauneuf.

See also

• Communes of the Drôme department