La Seyne-sur-Mer Population and Area (Var)
Largest city in France 2026: up-to-date figures for La Seyne-sur-Mer (Var)
La Seyne-sur-Mer Density
2,906 inhabitants/km²TOP #305
La Seyne-sur-Mer: Population and Area
With 64,430 inhabitants (INSEE total population in force on January 1, 2026), La Seyne-sur-Mer is the 89th most populous town in France in 2026 and the 2nd most populous in the Var department, out of 153 communes. It covers 22 km² (6,823rd largest area in France, 112th largest in the department), with a population density of 2,906 inhabitants per km², or 27 times the national average (110 inhabitants/km²), which ranks it 305th in France for density.
La Seyne-sur-Mer is located in the Var department (83), in the Provence-Alpes-Côte d'Azur region, where it ranks 8th by population out of 946 communes. The most populous town in the Var department is Toulon (180,774 inhabitants); the department is home to 1,135,585 people over 5,973 km².
See the full ranking of communes in the Var department and the regional ranking: largest city in Provence-Alpes-Côte d'Azur.
Towns of similar size in the Var department: Toulon (pop. 180,774), Fréjus (pop. 60,503), Hyères (pop. 56,763), Draguignan (pop. 41,617).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 83126. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.
La Seyne-sur-Mer, the second-largest town in the Var
The second most populous town in the Var department, behind Toulon, La Seyne-sur-Mer occupies the western shore of the Toulon harbor. Neither a prefecture nor a subprefecture, it owes its size to its role in the Toulon urban area and to its industrial history.
From shipyards to tourism
For more than a century, La Seyne-sur-Mer lived off its shipyards, which employed thousands of workers and built warships and ocean liners until they closed in 1989. The town has since turned to tourism and services, building on its assets: the neighboring Saint-Mandrier peninsula, the Tamaris district and its villas, Les Sablettes beach and Fort Balaguier. The former shipyard grounds have been redeveloped into a park and a waterfront district. Its population has kept growing, driven by the appeal of the Var coast and the proximity of Toulon.