This department has 252 communes.
| Code | Name | Population |
|---|---|---|
| 79191 | Niort | 59 854 |
| 79049 | Bressuire | 19 970 |
| 79329 | Thouars | 13 891 |
| 79202 | Parthenay | 10 140 |
| 79079 | Mauléon | 8 573 |
This department has 18 cantons.
| Code | Name | Central office |
|---|---|---|
| 7901 | Autize-Egray | Coulonges-sur-l'Autize |
| 7902 | Bressuire | Bressuire |
| 7903 | Celles-sur-Belle | Celles-sur-Belle |
| 7904 | Cerizay | Cerizay |
| 7905 | Frontenay-Rohan-Rohan | Frontenay-Rohan-Rohan |