What is the largest city of Seine-Maritime?

Le Havre, with 166,687 inhabitants, ahead of Rouen (117,662).

How many cities does Seine-Maritime have?

22 of its communes are listed here: every one over 10,000 inhabitants, plus the smaller ones that are household names. Seine-Maritime has far more communes than that.

Which city of Seine-Maritime is the densest?

Rouen, at 5,502 inhab./km², against 1,947 inhab./km² for the cities of Seine-Maritime taken together.

Which region is Seine-Maritime in?

Normandie, which this dataset carries 50 cities of.

Which cities are in Seine-Maritime?

Le Havre (166,687), Rouen (117,662), Saint-Étienne-du-Rouvray (29,518), Sotteville-lès-Rouen (29,003), Dieppe (28,496), Le Grand-Quevilly (25,789), Le Petit-Quevilly (22,208), Mont-Saint-Aignan (20,165), Fécamp (17,313), Montivilliers (15,478). The full table is on this page, with the figures for each.

Le Bon Rang

By department · Department 76

Cities of Seine-Maritime (76)

Seine-Maritime carries 22 cities in this dataset, 608,055 inhabitants between them. The largest is Le Havre (166,687), the smallest Étretat (1,102).

Could you put Dieppe, Le Havre and Saint-Étienne-du-Rouvray in this ranking's order? Le Bon Rang is that game, every day. Play today's game

Cities22
Inhabitants608,055
DensestRouen5,502 inhab./km²
Largest areaLe Havre53.1 km²

The 22 cities of Seine-Maritime, largest first
Rank	City	Population	Density inhab./km²	Area km²
1	Le Havre	166,687	3,140	53.1
2	Rouen	117,662	5,502	21.4
3	Saint-Étienne-du-Rouvray	29,518	1,615	18.3
4	Sotteville-lès-Rouen	29,003	3,904	7.4
5	Dieppe	28,496	2,411	11.8
6	Le Grand-Quevilly	25,789	2,349	11
7	Le Petit-Quevilly	22,208	5,112	4.3
8	Mont-Saint-Aignan	20,165	2,541	7.9
9	Fécamp	17,313	1,152	15
10	Montivilliers	15,478	814	19
11	Elbeuf	15,474	949	16.3
12	Bois-Guillaume	14,539	1,641	8.9
13	Canteleu	14,402	818	17.6
14	Oissel-sur-Seine	12,317	556	22.2
15	Barentin	12,022	945	12.7
16	Bolbec	11,590	943	12.3
17	Yvetot	11,438	1,530	7.5
18	Maromme	10,957	2,655	4.1
19	Déville-lès-Rouen	10,802	3,416	3.2
20	Port-Jérôme-sur-Seine	10,617	348	30.5
21	Caudebec-lès-Elbeuf	10,476	2,866	3.7
22	Étretat	1,102	267	4.1

All rankings →

The rankings of Seine-Maritime

Where Seine-Maritime stands out

Its region : Normandie

The other departments of Normandie

Every territory (118)

All 13 regions

All 105 departments →

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.

5 questions about this territory

What is the largest city of Seine-Maritime?: Le Havre, with 166,687 inhabitants, ahead of Rouen (117,662).
How many cities does Seine-Maritime have?: 22 of its communes are listed here: every one over 10,000 inhabitants, plus the smaller ones that are household names. Seine-Maritime has far more communes than that.
Which city of Seine-Maritime is the densest?: Rouen, at 5,502 inhab./km², against 1,947 inhab./km² for the cities of Seine-Maritime taken together.
Which region is Seine-Maritime in?: Normandie, which this dataset carries 50 cities of.
Which cities are in Seine-Maritime?: Le Havre (166,687), Rouen (117,662), Saint-Étienne-du-Rouvray (29,518), Sotteville-lès-Rouen (29,003), Dieppe (28,496), Le Grand-Quevilly (25,789), Le Petit-Quevilly (22,208), Mont-Saint-Aignan (20,165), Fécamp (17,313), Montivilliers (15,478). The full table is on this page, with the figures for each.