This department has 445 communes.
| Code | Name | Population |
|---|---|---|
| 50129 | Cherbourg-en-Cotentin | 78 258 |
| 50502 | Saint-Lô | 19 471 |
| 50218 | Granville | 12 510 |
| 50041 | La Hague | 11 484 |
| 50099 | Carentan-les-Marais | 10 218 |
This department has 31 cantons.
| Code | Name | Central office |
|---|---|---|
| 5001 | Agon-Coutainville | Agon-Coutainville |
| 5002 | Avranches | Avranches |
| 5003 | Bréhal | Bréhal |
| 5004 | Bricquebec-en-Cotentin | Bricquebec-en-Cotentin |
| 5005 | Carentan-les-Marais | Carentan-les-Marais |
This department has 4 departmental arrondissements.
| Code | Name | Administrative seat |
|---|---|---|
| 501 | Avranches | Avranches |
| 502 | Cherbourg | Cherbourg-en-Cotentin |
| 503 | Coutances | Coutances |
| 504 | Saint-Lô | Saint-Lô |