The 3 arrondissements of the Gers department are:[1]
- Arrondissement of Auch, (prefecture of the Gers department: Auch) with 134 communes. The population of the arrondissement was 81,242 in 2016.
- Arrondissement of Condom, (subprefecture: Condom) with 162 communes. The population of the arrondissement was 67,137 in 2016.
- Arrondissement of Mirande, (subprefecture: Mirande) with 165 communes.[2] The population of the arrondissement was 42,285 in 2016.