This department has 39 communes.
| Code | Name | Population |
|---|---|---|
| 93066 | Saint-Denis | 149 077 |
| 93048 | Montreuil | 111 934 |
| 93001 | Aubervilliers | 88 365 |
| 93005 | Aulnay-sous-Bois | 87 599 |
| 93051 | Noisy-le-Grand | 72 978 |
This department has 26 cantons.
| Code | Name | Central office |
|---|---|---|
| 9301 | Aubervilliers | Aubervilliers |
| 9302 | Aulnay-sous-Bois | Aulnay-sous-Bois |
| 9303 | Bagnolet | Bagnolet |
| 9304 | Le Blanc-Mesnil | Le Blanc-Mesnil |
| 9305 | Bobigny | Bobigny |
This department has 3 departmental arrondissements.
| Code | Name | Administrative seat |
|---|---|---|
| 931 | Bobigny | Bobigny |
| 932 | Le Raincy | Le Raincy |
| 933 | Saint-Denis | Saint-Denis |