Issou

Issou is an administrative commune located in the Yvelines department within the Île-de-France region of northern France. The settlement sits on gently rolling terrain and forms part of the administrative area surrounding Mantes-la-Jolie.

The settlement experienced significant population growth over recent decades, reflecting broader changes in the Île-de-France region. This development transformed the commune from a smaller rural area into a more populated community.

Residents of Issou, known as Issoussois and Issoussoises, participate in local governance through regular municipal elections and community meetings.

The commune has a town hall that handles local administrative matters during regular weekday hours for residents. The location is readily accessible by road and remains well-connected to the surrounding areas.

Issou maintains a position in the intercommunality CU Grand Paris Seine et Oise while preserving its distinct administrative identity with INSEE code 78314.

Location: Yvelines

Location: arrondissement of Mantes-la-Jolie

Elevation above the sea: 67 m

Shares border with: Gargenville, Guitrancourt, Mézières-sur-Seine, Porcheville

Phone: +33134971919

Email: dgs@mairie-issou.fr

Website: http://issou.fr

GPS coordinates: 48.98917,1.79250

Latest update: December 20, 2025 13:33