The arrondissement Cayenne has 10 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 97302 | Cayenne | 62 675 |
| 97307 | Matoury | 36 512 |
| 97309 | Remire-Montjoly | 27 723 |
| 97304 | Kourou | 24 824 |
| 97305 | Macouria | 19 899 |
| 97313 | Montsinéry-Tonnegrande | 3 626 |
| 97310 | Roura | 3 449 |
| 97312 | Sinnamary | 2 756 |
| 97303 | Iracoubo | 1 662 |
| 97358 | Saint-Élie | 159 |