What is the most densely populated city in Val-d'Oise?

Bezons, at 8,704 inhab./km², ahead of Saint-Gratien (7,837 inhab./km²).

What is the least densely populated city in Val-d'Oise?

L'Isle-Adam, at 797 inhab./km². 38 cities of Val-d'Oise are measured here.

Where does Bezons stand in France?

53 of the 1,131 French cities measured on density. The national ranking is on its own page.

Which cities lead in Val-d'Oise?

Bezons (8,704 inhab./km²), Saint-Gratien (7,837 inhab./km²), Garges-lès-Gonesse (7,649 inhab./km²), Ermont (7,099 inhab./km²), Sarcelles (7,028 inhab./km²). The whole table is on this page.

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In Val-d'Oise · INSEE, populations légales

The most densely populated cities in Val-d'Oise

Bezons is the most densely populated city in Val-d'Oise, at 8,704 inhab./km², ahead of Saint-Gratien (7,837 inhab./km²) and Garges-lès-Gonesse (7,649 inhab./km²). At the other end, L'Isle-Adam is the least densely populated city, at 797 inhab./km².

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The 38 cities of Val-d'Oise ranked on density
Rank	City	Density	Population
1	Bezons	8,704 inhab./km²	36,434
2	Saint-Gratien	7,837 inhab./km²	21,336
3	Garges-lès-Gonesse	7,649 inhab./km²	41,791
4	Ermont	7,099 inhab./km²	29,489
5	Sarcelles	7,028 inhab./km²	59,173
6	Enghien-les-Bains	6,539 inhab./km²	11,432
7	Deuil-la-Barre	6,154 inhab./km²	23,099
8	Argenteuil	6,103 inhab./km²	106,130
9	Franconville	6,065 inhab./km²	37,754
10	Eaubonne	5,942 inhab./km²	26,211
11	Sannois	5,641 inhab./km²	26,924
12	Montigny-lès-Cormeilles	5,536 inhab./km²	22,457
13	Arnouville	5,283 inhab./km²	15,023
14	Montmagny	5,182 inhab./km²	15,105
15	Cergy	4,872 inhab./km²	70,906
16	Soisy-sous-Montmorency	4,554 inhab./km²	18,008
17	Pontoise	4,463 inhab./km²	31,970
18	Vauréal	4,295 inhab./km²	16,079
19	Montmorency	4,188 inhab./km²	21,763
20	Villiers-le-Bel	4,110 inhab./km²	30,053
21	Éragny-sur-Oise	3,906 inhab./km²	18,436
22	Cormeilles-en-Parisis	3,238 inhab./km²	27,292
23	Saint-Leu-la-Forêt	3,089 inhab./km²	16,138
24	Fosses	2,915 inhab./km²	10,570
25	Persan	2,774 inhab./km²	14,359
26	Goussainville	2,741 inhab./km²	31,301
27	Taverny	2,648 inhab./km²	27,593
28	Herblay-sur-Seine	2,525 inhab./km²	31,779
29	Saint-Brice-sous-Forêt	2,512 inhab./km²	15,063
30	Jouy-le-Moutier	2,444 inhab./km²	17,854
31	Domont	1,886 inhab./km²	16,065
32	Beaumont-sur-Oise	1,829 inhab./km²	10,232
33	Saint-Ouen-l'Aumône	1,828 inhab./km²	25,578
34	Osny	1,459 inhab./km²	17,954
35	Gonesse	1,365 inhab./km²	27,707
36	Pierrelaye	1,130 inhab./km²	10,130
37	Louvres	1,104 inhab./km²	12,560
38	L'Isle-Adam	797 inhab./km²	12,493

Every city of Val-d'Oise →

The same ranking for the whole of France : The densest cities in France · The least densely populated cities in France

The most densely populated cities in, elsewhere

The other rankings of Val-d'Oise

Scope, method and sources

Scope: France, metropolitan and overseas, Corsica and the DROM included. This dataset holds every commune of 10,000 inhabitants or more, plus smaller communes famous enough to be household names, 1,131 in all. It is not the full list of 35,000 French communes, so a village can sit outside a ranking whose extreme it would otherwise hold.

Method and sources: populations are the INSEE legal populations, boundaries and coordinates come from the IGN commune registry, both served by geo.api.gouv.fr. Density is the population divided by the commune's area; distances are measured as the crow flies from the commune's centre. Data read on August 28, 2026.

4 questions about this ranking

What is the most densely populated city in Val-d'Oise?: Bezons, at 8,704 inhab./km², ahead of Saint-Gratien (7,837 inhab./km²).
What is the least densely populated city in Val-d'Oise?: L'Isle-Adam, at 797 inhab./km². 38 cities of Val-d'Oise are measured here.
Where does Bezons stand in France?: 53 of the 1,131 French cities measured on density. The national ranking is on its own page.
Which cities lead in Val-d'Oise?: Bezons (8,704 inhab./km²), Saint-Gratien (7,837 inhab./km²), Garges-lès-Gonesse (7,649 inhab./km²), Ermont (7,099 inhab./km²), Sarcelles (7,028 inhab./km²). The whole table is on this page.