The 3 arrondissements of the Seine-Saint-Denis department are:[1]
- Arrondissement of Bobigny, (prefecture of the Seine-Saint-Denis département: Bobigny) with 9 communes. The population of the arrondissement was 439,276 in 2021.
- Arrondissement of Le Raincy, (subprefecture: Le Raincy) with 22 communes. The population of the arrondissement was 777,460 in 2021.
- Arrondissement of Saint-Denis, (subprefecture: Saint-Denis) with 9 communes. The population of the arrondissement was 451,934 in 2021.