The canton Coudekerque-Branche has 9 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 59155 | Coudekerque-Branche | 20 787 |
| 59588 | Téteghem-Coudekerque-Village | 8 247 |
| 59131 | Cappelle-la-Grande | 7 839 |
| 59067 | Bergues | 3 525 |
| 59016 | Armbouts-Cappel | 2 077 |
| 59576 | Spycker | 1 718 |
| 59082 | Bierne | 1 716 |
| 59605 | Uxem | 1 518 |
| 59579 | Steene | 1 405 |