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.[2]
The borders of the arrondissements of Manche were modified in January 2017:[3]
14 communes from the arrondissement of Coutances to the arrondissement of Avranches
two communes from the arrondissement of Coutances to the arrondissement of Cherbourg
one commune from the arrondissement of Coutances to the arrondissement of Saint-Lô
two communes from the arrondissement of Saint-Lô to the arrondissement of Coutances