Largest city in the Val-d'Oise department: the 2026 ranking
The 183 towns of the Val-d'Oise department (95) ranked by population, area and density, based on the official INSEE population figures in force in 2026.
The largest city in the Val-d'Oise department is Argenteuil, with 106,546 inhabitants (ranked 40th in France by population). The largest town by area is Luzarches (20 km²). The most densely populated is Saint-Gratien, with 8,854 inhabitants per km². At the other end of the ranking, Charmont has only 34 inhabitants.
The Val-d'Oise department has 1,290,942 inhabitants over 1,246 km², a density of 1,036 inhabitants per km², 9.5 times the national average (110 per km²). It accounts for 10.3% of the population of Île-de-France, the region it belongs to: see the ranking of the largest cities in Île-de-France.
The 20 largest cities in the Val-d'Oise department by population
| # | Town | Population | km² | per km² | France rank |
|---|---|---|---|---|---|
| 1 | Argenteuil | 106,546 | 17 | 6,187 | 40th |
| 2 | Cergy | 71,250 | 12 | 6,116 | 74th |
| 3 | Sarcelles | 59,385 | 8.5 | 7,028 | 101st |
| 4 | Garges-lès-Gonesse | 41,893 | 5.5 | 7,659 | 187th |
| 5 | Franconville | 37,896 | 6.2 | 6,122 | 212th |
| 6 | Bezons | 36,551 | 4.2 | 8,786 | 230th |
| 7 | Pontoise | 32,475 | 7.2 | 4,542 | 259th |
| 8 | Herblay-sur-Seine | 32,044 | 13 | 2,515 | 266th |
| 9 | Goussainville | 31,413 | 12 | 2,727 | 273rd |
| 10 | Villiers-le-Bel | 30,195 | 7.3 | 4,136 | 293rd |
| 11 | Ermont | 29,691 | 4.2 | 7,137 | 297th |
| 12 | Gonesse | 27,794 | 20 | 1,383 | 322nd |
| 13 | Taverny | 27,756 | 10 | 2,648 | 323rd |
| 14 | Cormeilles-en-Parisis | 27,522 | 8.5 | 3,246 | 328th |
| 15 | Sannois | 27,266 | 4.8 | 5,704 | 332nd |
| 16 | Eaubonne | 26,558 | 4.4 | 6,009 | 347th |
| 17 | Saint-Ouen-l'Aumône | 25,699 | 12 | 2,105 | 361st |
| 18 | Deuil-la-Barre | 23,287 | 3.8 | 6,193 | 397th |
| 19 | Montigny-lès-Cormeilles | 22,555 | 4.1 | 5,542 | 415th |
| 20 | Montmorency | 21,993 | 5.4 | 4,096 | 431st |
Largest towns by area in the Val-d'Oise department
| # | Town | Population | km² | per km² | France rank |
|---|---|---|---|---|---|
| 1 | Luzarches | 5,090 | 20 | 248 | 7,735th |
| 2 | Gonesse | 27,794 | 20 | 1,383 | 7,982nd |
| 3 | Argenteuil | 106,546 | 17 | 6,187 | 10,078th |
| 4 | Avernes | 885 | 17 | 52 | 10,136th |
| 5 | Chars | 2,034 | 17 | 122 | 10,479th |
| 6 | Arronville | 624 | 16 | 39 | 11,297th |
| 7 | L'Isle-Adam | 12,658 | 15 | 847 | 12,178th |
| 8 | Chaussy | 637 | 15 | 44 | 12,587th |
| 9 | Roissy-en-France | 2,699 | 14 | 192 | 13,127th |
| 10 | Asnières-sur-Oise | 3,169 | 14 | 225 | 13,149th |
Most densely populated towns in the Val-d'Oise department
| # | Town | Population | km² | per km² | France rank |
|---|---|---|---|---|---|
| 1 | Saint-Gratien | 21,427 | 2.4 | 8,854 | 54th |
| 2 | Bezons | 36,551 | 4.2 | 8,786 | 55th |
| 3 | Garges-lès-Gonesse | 41,893 | 5.5 | 7,659 | 74th |
| 4 | Ermont | 29,691 | 4.2 | 7,137 | 81st |
| 5 | Sarcelles | 59,385 | 8.5 | 7,028 | 82nd |
| 6 | Enghien-les-Bains | 11,549 | 1.8 | 6,525 | 92nd |
| 7 | Deuil-la-Barre | 23,287 | 3.8 | 6,193 | 98th |
| 8 | Argenteuil | 106,546 | 17 | 6,187 | 99th |
| 9 | Franconville | 37,896 | 6.2 | 6,122 | 101st |
| 10 | Cergy | 71,250 | 12 | 6,116 | 102nd |
All towns in the Val-d'Oise department (183)
INSEE total population in parentheses. Each town page gives its area, density, national and departmental rankings, and neighboring towns.
- Ableiges (1,123)
- Aincourt (869)
- Ambleville (390)
- Amenucourt (212)
- Andilly (2,789)
- Argenteuil (106,546)
- Arnouville (15,105)
- Arronville (624)
- Arthies (265)
- Asnières-sur-Oise (3,169)
- Attainville (1,916)
- Auvers-sur-Oise (6,973)
- Avernes (885)
- Baillet-en-France (2,035)
- Banthelu (147)
- Beauchamp (9,920)
- Beaumont-sur-Oise (10,333)
- Bellefontaine (477)
- Belloy-en-France (2,268)
- Bernes-sur-Oise (2,708)
- Berville (382)
- Bessancourt (8,912)
- Béthemont-la-Forêt (438)
- Bezons (36,551)
- Boisemont (908)
- Boissy-l'Aillerie (2,151)
- Bonneuil-en-France (1,187)
- Bouffémont (6,638)
- Bouqueval (314)
- Bray-et-Lû (962)
- Bréançon (441)
- Brignancourt (264)
- Bruyères-sur-Oise (4,958)
- Buhy (332)
- Butry-sur-Oise (2,279)
- Cergy (71,250)
- Champagne-sur-Oise (5,093)
- Charmont (34)
- Chars (2,034)
- Châtenay-en-France (68)
- Chaumontel (3,396)
- Chaussy (637)
- Chauvry (301)
- Chennevières-lès-Louvres (284)
- Chérence (138)
- Cléry-en-Vexin (482)
- Commeny (652)
- Condécourt (570)
- Cormeilles-en-Parisis (27,522)
- Cormeilles-en-Vexin (1,314)
- Courcelles-sur-Viosne (312)
- Courdimanche (7,386)
- Deuil-la-Barre (23,287)
- Domont (16,188)
- Eaubonne (26,558)
- Écouen (7,231)
- Enghien-les-Bains (11,549)
- Ennery (2,268)
- Épiais-lès-Louvres (156)
- Épiais-Rhus (620)
- Épinay-Champlâtreux (57)
- Éragny-sur-Oise (18,573)
- Ermont (29,691)
- Ézanville (9,918)
- Fontenay-en-Parisis (2,233)
- Fosses (10,637)
- Franconville (37,896)
- Frémainville (515)
- Frémécourt (533)
- Frépillon (3,358)
- Frouville (355)
- Garges-lès-Gonesse (41,893)
- Genainville (532)
- Génicourt (522)
- Gonesse (27,794)
- Goussainville (31,413)
- Grisy-les-Plâtres (724)
- Groslay (8,497)
- Guiry-en-Vexin (162)
- Haravilliers (595)
- Haute-Isle (298)
- Hédouville (280)
- Herblay-sur-Seine (32,044)
- Hérouville-en-Vexin (594)
- Hodent (225)
- Jagny-sous-Bois (275)
- Jouy-le-Moutier (17,989)
- L'Isle-Adam (12,658)
- La Chapelle-en-Vexin (327)
- La Frette-sur-Seine (4,623)
- La Roche-Guyon (424)
- Labbeville (651)
- Lassy (196)
- Le Bellay-en-Vexin (232)
- Le Heaulme (210)
- Le Mesnil-Aubry (918)
- Le Perchay (515)
- Le Plessis-Bouchard (8,584)
- Le Plessis-Gassot (104)
- Le Plessis-Luzarches (156)
- Le Thillay (4,570)
- Livilliers (393)
- Longuesse (504)
- Louvres (12,606)
- Luzarches (5,090)
- Maffliers (1,875)
- Magny-en-Vexin (5,840)
- Mareil-en-France (744)
- Margency (3,049)
- Marines (3,650)
- Marly-la-Ville (6,071)
- Maudétour-en-Vexin (212)
- Menouville (62)
- Menucourt (6,231)
- Mériel (5,402)
- Méry-sur-Oise (10,053)
- Moisselles (1,272)
- Montgeroult (364)
- Montigny-lès-Cormeilles (22,555)
- Montlignon (3,131)
- Montmagny (15,159)
- Montmorency (21,993)
- Montreuil-sur-Epte (385)
- Montsoult (4,055)
- Mours (1,701)
- Moussy (110)
- Nerville-la-Forêt (768)
- Nesles-la-Vallée (1,869)
- Neuilly-en-Vexin (245)
- Neuville-sur-Oise (2,082)
- Nointel (919)
- Noisy-sur-Oise (554)
- Nucourt (732)
- Omerville (330)
- Osny (18,107)
- Parmain (5,770)
- Persan (14,395)
- Pierrelaye (10,156)
- Piscop (807)
- Pontoise (32,475)
- Presles (4,066)
- Puiseux-en-France (3,801)
- Puiseux-Pontoise (604)
- Roissy-en-France (2,699)
- Ronquerolles (926)
- Sagy (1,118)
- Saint-Brice-sous-Forêt (15,133)
- Saint-Clair-sur-Epte (971)
- Saint-Cyr-en-Arthies (237)
- Saint-Gervais (893)
- Saint-Gratien (21,427)
- Saint-Leu-la-Forêt (16,267)
- Saint-Martin-du-Tertre (2,713)
- Saint-Ouen-l'Aumône (25,699)
- Saint-Prix (7,692)
- Saint-Witz (2,820)
- Sannois (27,266)
- Santeuil (669)
- Sarcelles (59,385)
- Seraincourt (1,324)
- Seugy (1,058)
- Soisy-sous-Montmorency (18,148)
- Survilliers (4,131)
- Taverny (27,756)
- Théméricourt (289)
- Theuville (53)
- Us (1,389)
- Vallangoujard (632)
- Valmondois (1,232)
- Vaudherland (105)
- Vauréal (16,288)
- Vémars (3,144)
- Vétheuil (881)
- Viarmes (5,620)
- Vienne-en-Arthies (385)
- Vigny (1,158)
- Villaines-sous-Bois (788)
- Villeron (1,776)
- Villers-en-Arthies (505)
- Villiers-Adam (874)
- Villiers-le-Bel (30,195)
- Villiers-le-Sec (207)
- Wy-dit-Joli-Village (330)
Other departments in Île-de-France
Paris (75) Seine-et-Marne (77) Yvelines (78) Essonne (91) Hauts-de-Seine (92) Seine-Saint-Denis (93) Val-de-Marne (94) All departments
Sources: INSEE, official population figures in force on January 1, 2026 (total population); land area: IGN / Observatoire des territoires. Rankings computed across the 34,858 communes in the database.