The canton Gisors has 34 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 27284 | Gisors | 12 410 |
| 27226 | Étrépagny | 3 670 |
| 27067 | Bézu-Saint-Éloi | 1 626 |
| 27426 | Neaufles-Saint-Martin | 1 289 |
| 27045 | Bazincourt-sur-Epte | 778 |
| 27333 | Heudicourt | 713 |
| 27372 | Longchamps | 662 |
| 27417 | Morgny | 650 |
| 27324 | Hébécourt | 628 |
| 27682 | Vesly | 613 |
| 27480 | Puchay | 605 |
| 27632 | Le Thil | 586 |
| 27617 | Saussay-la-Campagne | 528 |
| 27199 | Dangu | 527 |
| 27533 | Saint-Denis-le-Ferment | 495 |
| 27633 | Les Thilliers-en-Vexin | 491 |
| 27026 | Authevernes | 470 |
| 27153 | Chauvincourt-Provemont | 397 |
| 27310 | Hacqueville | 394 |
| 27430 | La Neuve-Grange | 389 |
| 27437 | Nojeon-en-Vexin | 352 |
| 27232 | Farceaux | 343 |
| 27059 | Bernouville | 321 |
| 27690 | Villers-en-Vexin | 311 |
| 27276 | Gamaches-en-Vexin | 295 |
| 27490 | Richeville | 264 |
| 27567 | Sainte-Marie-de-Vatimesnil | 262 |
| 27204 | Doudeauville-en-Vexin | 261 |
| 27445 | Noyers | 257 |
| 27176 | Coudray | 216 |
| 27010 | Amécourt | 172 |
| 27614 | Sancourt | 169 |
| 27420 | Mouflaines | 159 |
| 27304 | Guerny | 150 |