Arrondissements of the Ain department

The 4 arrondissements of the Ain department are:

1. Arrondissement of Belley, (subprefecture: Belley) with 104 communes. The population of the arrondissement was 97,136 in 2013.
2. Arrondissement of Bourg-en-Bresse, (prefecture of the Ain department: Bourg-en-Bresse) with 218 communes. The population of the arrondissement was 350,548 in 2013.
3. Arrondissement of Gex, (subprefecture: Gex) with 29 communes. The population of the arrondissement was 87,153 in 2013.
4. Arrondissement of Nantua, (subprefecture: Nantua) with 59 communes. The population of the arrondissement was 84,660 in 2013.