The canton Soissons-1 has 15 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 02722 | Soissons | 28 046 |
| 02243 | Crouy | 3 049 |
| 02805 | Villeneuve-Saint-Germain | 2 616 |
| 02245 | Cuffies | 1 733 |
| 02780 | Venizel | 1 324 |
| 02593 | Pasly | 1 100 |
| 02610 | Pommiers | 726 |
| 02253 | Cuisy-en-Almont | 361 |
| 02576 | Osly-Courtil | 325 |
| 02767 | Vauxrezis | 323 |
| 02398 | Juvigny | 288 |
| 02175 | Chavigny | 153 |
| 02424 | Leury | 101 |
| 02828 | Vregny | 89 |
| 02043 | Bagneux | 62 |