The 4 arrondissements of the Manche department are:[1]
In 1800 the arrondissements of Saint-Lô, Avranches, Coutances, Mortain and Valognes were established. The arrondissement of Cherbourg was created in 1811. The arrondissements of Mortain and Valognes were disbanded in 1926.[6]
The borders of the arrondissements of Manche were modified in January 2017:[7]