Le Blanc-Mesnil Population and Area (Seine-Saint-Denis)
Largest city in France 2026: up-to-date figures for Le Blanc-Mesnil (Seine-Saint-Denis)
Le Blanc-Mesnil: Population and Area
With 62,547 inhabitants (INSEE total population in force on January 1, 2026), Le Blanc-Mesnil is the 93rd most populous town in France in 2026 and the 7th most populous in the Seine-Saint-Denis department, out of 39 communes. It covers 8.05 km² (22,755th largest area in France, 7th largest in the department), with a population density of 7,770 inhabitants per km², or 71 times the national average (110 inhabitants/km²), which ranks it 68th in France for density.
Le Blanc-Mesnil is located in the Seine-Saint-Denis department (93), in the Île-de-France region, where it ranks 27th by population out of 1,266 communes. The most populous town in the Seine-Saint-Denis department is Saint-Denis (149,936 inhabitants); the department is home to 1,710,659 people over 236 km².
See the full ranking of communes in the Seine-Saint-Denis department and the regional ranking: largest city in Île-de-France.
Towns of similar size in the Seine-Saint-Denis department: Aulnay-sous-Bois (pop. 87,951), Noisy-le-Grand (pop. 73,408), Drancy (pop. 72,583), Pantin (pop. 62,083), Bobigny (pop. 57,035), Saint-Ouen-sur-Seine (pop. 53,747).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 93007. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.
Le Blanc-Mesnil, a large town in northern Seine-Saint-Denis
Le Blanc-Mesnil is one of the most populous towns in the Seine-Saint-Denis department, northeast of Paris, right next to Le Bourget airport. Neither a prefecture nor a subprefecture, it owes its size to the rapid urbanization of the Plaine de France in the 20th century.
From housing subdivisions to large housing projects
A farming village until the early 20th century, Le Blanc-Mesnil was covered between the two world wars with subdivisions of single-family homes, often built by their own residents, who worked in the factories and railway workshops of the northern Paris area. After World War II, large social housing estates were built to cope with the housing shortage, multiplying the population once again. Today the town combines an extensive fabric of detached houses with apartment neighborhoods undergoing renovation, on a territory of average size, which gives it a high density without reaching that of the towns bordering Paris.