The canton Crozon has 18 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 29042 | Crozon | 7 499 |
| 29026 | Châteaulin | 5 085 |
| 29022 | Camaret-sur-Mer | 2 494 |
| 29172 | Plomodiern | 2 282 |
| 29280 | Telgruc-sur-Mer | 2 167 |
| 29120 | Lanvéoc | 2 044 |
| 29044 | Dinéault | 1 853 |
| 29176 | Plonévez-Porzay | 1 781 |
| 29025 | Cast | 1 570 |
| 29229 | Quéménéven | 1 119 |
| 29001 | Argol | 1 065 |
| 29238 | Roscanvel | 855 |
| 29256 | Saint-Nic | 753 |
| 29166 | Ploéven | 550 |
| 29243 | Saint-Coulitz | 475 |
| 29222 | Port-Launay | 404 |
| 29104 | Landévennec | 330 |
| 29289 | Trégarvan | 134 |