The 4 arrondissements of the Lot-et-Garonne department are:[1]
- Arrondissement of Agen, (prefecture of the Lot-et-Garonne department: Agen) with 71 communes. The population of the arrondissement was 120,499 in 2016.
- Arrondissement of Marmande, (subprefecture: Marmande) with 98 communes. The population of the arrondissement was 83,647 in 2016.
- Arrondissement of Nérac, (subprefecture: Nérac) with 58 communes. The population of the arrondissement was 39,020 in 2016.
- Arrondissement of Villeneuve-sur-Lot, (subprefecture: Villeneuve-sur-Lot) with 92 communes. The population of the arrondissement was 89,667 in 2016.