Éragny is a commune in the northwestern suburbs of Paris, France. It is located 26.3 km from the centre of Paris, in the "new town" of Cergy-Pontoise, Val-d'Oise, created in the 1960s.
Inhabitants are called Éragniens and Éragniennés. In 2018, the commune had a population of 18,162.
Wikipedia https://en.wikipedia.org/wiki/Éragny,_Val-d'Oise
Coordinates 49°1'9.184" N 2°5'27.894" E