Avernes

For other uses, see Avernes (disambiguation).

Avernes
Commune
L'Aubette de Meulan River
Coat of arms
Location of Avernes
Avernes Location within France Avernes Location within Île-de-France (region)
Coordinates: 49°05′11″N 1°52′27″E
Country	France
Region	Île-de-France
Department	Val-d'Oise
Arrondissement	Pontoise
Canton	Vauréal
Intercommunality	CC Vexin Centre
Government
• Mayor (2020–2026)	Chrystelle Noblia
Area 1	17.15 km2 (6.62 sq mi)
Population  (2023)	871
• Density	50.8/km2 (132/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	95040 /95450
Elevation	82–201 m (269–659 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Avernes (French pronunciation: [avɛʁn] ^ⓘ) is a commune in the Val-d'Oise department in Île-de-France in northern France. On 1 January 2018, the former commune of Gadancourt was merged into Avernes.

Population

Population data refer to the area corresponding with the commune as of January 2025.

Historical population

Year	Pop.	±% p.a.
1968	575	—
1975	655	+1.88%
1982	761	+2.17%
1990	765	+0.07%
1999	852	+1.20%
2007	921	+0.98%
2012	909	−0.26%
2017	852	−1.29%
2023	871	+0.37%
Source: INSEE

See also

• Communes of the Val-d'Oise department

External links

• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)
• Association of Mayors of the Val d'Oise (in French)