Number of electors: 11497 including 135 persons from other nationalities of the European Union.
Situation: in a loop of the Seine, 18 km West of Paris, 3 km East of Saint-Germain-en-Laye.
Altitude: from 26 to 46 m.
Area: 500 hectares.
Five lakes (on 5 hectares): Supérieur, Inférieur, des Ibis, de la Station, de Croissy.
Rivers: 4 km of river link the lakes together.

Administrative Environment

Region Ile-de-France (President of the regional council: Jean-Paul Huchon).
Prefecture of Ile-de-France (Prefect: Pierre Mutz).
Department of The Yvelines (President of the General council: Pierre Bédier).
District Vésinet (Le Vésinet, Montesson): Jean-François Bel, vice-president of the General council.
Prefecture of the Yvelines (Prefect: Christian de Lavernée).
Sub-prefecture of Saint-Germain-en-Laye (Sub-prefect: Rollon Mouchel-Blaisot).

Fifth circumscription, including Le Vésinet, Maisons-Laffitte, Sartrouville, Montesson, Le Mesnil-le-Roi (deputy: Jacques Myard, mayor of Maisons-Laffitte ; senator: Alain Gournac, mayor of Le Pecq).