Astuce :
| nom commune | pop. | code insee | code siren | code postal |
|---|---|---|---|---|
| Amécourt | 174 | 27010 | 212700108 | 27140 |
| Authevernes | 466 | 27026 | 212700264 | 27420 |
| Bazincourt-sur-Epte | 780 | 27045 | 212700454 | 27140 |
| Bernouville | 317 | 27059 | 212700595 | 27660 |
| Bézu-Saint-Éloi | 1616 | 27067 | 212700678 | 27660 |
| Chauvincourt-Provemont | 393 | 27153 | 212701536 | 27150 |
| Coudray | 217 | 27176 | 212701767 | 27150 |
| Dangu | 542 | 27199 | 212701999 | 27720 |
| Doudeauville-en-Vexin | 265 | 27204 | 212702047 | 27150 |
| Étrépagny | 3677 | 27226 | 212702260 | 27150 |
| Farceaux | 343 | 27232 | 212702328 | 27150 |
| Gamaches-en-Vexin | 290 | 27276 | 212702765 | 27150 |
| Gisors (chef lieu) | 12395 | 27284 | 212702849 | 27140 |
| Guerny | 155 | 27304 | 212703045 | 27720 |
| Hacqueville | 403 | 27310 | 212703102 | 27150 |
| Hébécourt | 634 | 27324 | 212703243 | 27150 |
| Heudicourt | 723 | 27333 | 212703334 | 27860 |
| Longchamps | 685 | 27372 | 212703722 | 27150 |
| Morgny | 663 | 27417 | 212704175 | 27150 |
| Mouflaines | 162 | 27420 | 212704209 | 27420 |
| Neaufles-Saint-Martin | 1306 | 27426 | 212704266 | 27830 |
| la Neuve-Grange | 389 | 27430 | 212704308 | 27150 |
| Nojeon-en-Vexin | 347 | 27437 | 212704373 | 27150 |
| Noyers | 251 | 27445 | 212704456 | 27720 |
| Puchay | 609 | 27480 | 212704803 | 27150 |
| Richeville | 266 | 27490 | 212704902 | 27420 |
| Saint-Denis-le-Ferment | 502 | 27533 | 212705339 | 27140 |
| Sainte-Marie-de-Vatimesnil | 268 | 27567 | 212705677 | 27150 |
| Sancourt | 171 | 27614 | 212706147 | 27150 |
| Saussay-la-Campagne | 532 | 27617 | 212706170 | 27150 |
| le Thil | 594 | 27632 | 212706329 | 27150 |
| les Thilliers-en-Vexin | 493 | 27633 | 212706337 | 27420 |
| Vesly | 621 | 27682 | 212706824 | 27870 |
| Villers-en-Vexin | 313 | 27690 | 212706907 | 27420 |
Le canton de Gisors est composé de 34 communes entières pour une population de 31562 habitants.