The 4 arrondissements of the Yvelines department are:[1]
- Arrondissement of Mantes-la-Jolie, (subprefecture: Mantes-la-Jolie) with 109 communes.[2] The population of the arrondissement was 271,436 in 2016.
- Arrondissement of Rambouillet, (subprefecture: Rambouillet) with 83 communes. The population of the arrondissement was 228,196 in 2016.
- Arrondissement of Saint-Germain-en-Laye, (subprefecture: Saint-Germain-en-Laye) with 44 communes.[3] The population of the arrondissement was 518,220 in 2016.
- Arrondissement of Versailles, (prefecture of the Yvelines department: Versailles) with 23 communes.[4] The population of the arrondissement was 413,956 in 2016.