Vernouillet, YvelinesVernouillet is a commune in the Yvelines department in the Île-de-France in north-central France.WWW mairie-vernouillet.fr𝕏 Vernouillet78Twin towns – sister citiesVernouillet is twinned with: Hainburg, Germany Alberndorf im Pulkautal, Austria Trumau, Austria Yarm, England, United Kingdom