Cossonay District
Cossonay District was a district of the Canton of Vaud, Switzerland. The seat of the district was the town of Cossonay. It was dissolved on 31 August 2006.- On 1 January 1999 the former municipalities of Villars-Lussery and Lussery merged to form the new municipality of Lussery-Villars.
- On 1 September 2006 the municipalities of Bettens, Bournens, Boussens, Daillens, Lussery-Villars, Mex, Penthalaz, Penthaz, Sullens and Vufflens-la-Ville came from the District de Cossonay to join the Gros-de-Vaud District.
- On 1 September 2006 the municipalities of La Chaux, Chavannes-le-Veyron, Chevilly, Cossonay, Cottens, Cuarnens, Dizy, Eclépens, Ferreyres, Gollion, Grancy, L'Isle, Mauraz, Moiry, Mont-la-Ville, Montricher, Orny, Pampigny, Pompaples, La Sarraz, Senarclens and Sévery came from the District de Cossonay to join the Morges District.
Municipalities
