Arrondissements of the Orne department

The 3 arrondissements of the Orne department are:

1. Arrondissement of Alençon, (prefecture of the Orne department: Alençon) with 114 communes. The population of the arrondissement was 99,996 in 2013.
2. Arrondissement of Argentan, (subprefecture: Argentan) with 185 communes. The population of the arrondissement was 117,328 in 2013.
3. Arrondissement of Mortagne-au-Perche, (subprefecture: Mortagne-au-Perche) with 113 communes. The population of the arrondissement was 71,524 in 2013.