| population | |
| Ableiges | 1149 |
| Aincourt | 930 |
| Ambleville | 378 |
| Amenucourt | 213 |
| Arronville | 666 |
| Arthies | 281 |
| Auvers-sur-Oise | 6955 |
| Avernes | 858 |
| Banthelu | 157 |
| Beaumont-sur-Oise | 9597 |
| Bernes-sur-Oise | 2689 |
| Berville | 349 |
| Bethemont-la-Foret | 421 |
| Boisemont | 752 |
| Boissy-l'Aillerie | 1809 |
| Bray-et-Lu | 954 |
| Breancon | 376 |
| Brignancourt | 202 |
| Bruyeres-sur-Oise | 4303 |
| Buhy | 323 |
| Butry-sur-Oise | 2265 |
| Cergy | 63820 |
| Champagne-sur-Oise | 5029 |
| Charmont | 33 |
| Chars | 2142 |
| Chaussy | 591 |
| Chauvry | 302 |
| Cherence | 150 |
| Clery-en-Vexin | 456 |
| Commeny | 465 |
| Condecourt | 566 |
| Cormeilles-en-Vexin | 1379 |
| Courcelles-sur-Viosne | 274 |
| Courdimanche | 6712 |
| Ennery | 2423 |
| population | |
| Epiais-Rhus | 623 |
| Eragny | 16980 |
| Fremainville | 489 |
| Fremecourt | 563 |
| Frouville | 363 |
| Genainville | 544 |
| Genicourt | 526 |
| Gouzangrez | 168 |
| Grisy-les-Platres | 695 |
| Guiry-en-Vexin | 166 |
| Haravilliers | 547 |
| Haute-Isle | 279 |
| Hedouville | 278 |
| Herouville-en-Vexin | 619 |
| Hodent | 218 |
| Jouy-le-Moutier | 16044 |
| L'Isle-Adam | 12395 |
| La Chapelle-en-Vexin | 341 |
| La Roche-Guyon | 471 |
| Labbeville | 617 |
| Le Bellay-en-Vexin | 245 |
| Le Heaulme | 209 |
| Le Perchay | 549 |
| Livilliers | 387 |
| Longuesse | 536 |
| Magny-en-Vexin | 5555 |
| Marines | 3504 |
| Maudetour-en-Vexin | 191 |
| Menouville | 62 |
| Menucourt | 5607 |
| Meriel | 5059 |
| Mery-sur-Oise | 9712 |
| Montgeroult | 382 |
| Montreuil-sur-Epte | 422 |
| Mours | 1552 |
| population | |
| Moussy | 132 |
| Nerville-la-Foret | 692 |
| Nesles-la-Vallee | 1822 |
| Neuilly-en-Vexin | 196 |
| Neuville-sur-Oise | 2051 |
| Nointel | 792 |
| Noisy-sur-Oise | 669 |
| Nucourt | 717 |
| Omerville | 316 |
| Osny | 16869 |
| Parmain | 5583 |
| Persan | 12665 |
| Pontoise | 30690 |
| Presles | 3837 |
| Puiseux-Pontoise | 544 |
| Ronquerolles | 876 |
| Sagy | 1111 |
| Saint-Clair-sur-Epte | 986 |
| Saint-Cyr-en-Arthies | 246 |
| Saint-Gervais | 932 |
| Saint-Ouen-l'Aumone | 24087 |
| Santeuil | 664 |
| Seraincourt | 1304 |
| Themericourt | 291 |
| Theuville | 38 |
| Us | 1305 |
| Vallangoujard | 620 |
| Valmondois | 1202 |
| Vaureal | 16258 |
| Vetheuil | 843 |
| Vienne-en-Arthies | 434 |
| Vigny | 1082 |
| Villers-en-Arthies | 506 |
| Villiers-Adam | 863 |
| Wy-dit-Joli-Village | 335 |
 | Aérodrome de Pontoise - Cormeilles en Vexin | ~ 4.35 km |
| Paris-Le Bourget Airport | ~ 36.76 km |
| Paris Issy-les-Moulineaux Heliport | ~ 37.12 km |
| Paris Beauvais Tillé Airport | ~ 39.65 km |
| Vélizy-Villacoublay Air Base | ~ 40.40 km |
| Toussus-le-Noble Airport | ~ 40.59 km |
| Creil Air Base | ~ 42.16 km |
| Charles de Gaulle International Airport | ~ 42.61 km |
| Paris-Orly Airport | ~ 51.63 km |
