The 4 arrondissements of the Réunion department are: 1. * Arrondissement of Saint-Benoît, (subprefecture: Saint-Benoît) with 6 communes. The population of the arrondissement was 126,777 in 2016. 2. * Arrondissement of Saint-Denis, (prefecture of the Réunion department: Saint-Denis) with 3 communes. The population of the arrondissement was 204,304 in 2016. 3. * Arrondissement of Saint-Paul, (subprefecture: Saint-Paul) with 5 communes. The population of the arrondissement was 214,073 in 2016. 4. * Arrondissement of Saint-Pierre, (subprefecture: Saint-Pierre) with 10 communes. The population of the arrondissement was 307,770 in 2016.