Saint-Ouen-sur-Seine Population and Area (Seine-Saint-Denis)

Saint-Ouen-sur-Seine: Population and Area

With 53,747 inhabitants (INSEE total population in force on January 1, 2026), Saint-Ouen-sur-Seine is the 121^st most populous town in France in 2026 and the 10^th most populous in the Seine-Saint-Denis department, out of 39 communes. It covers 4.31 km² (31,112^th largest area in France, 23^rd largest in the department), with a population density of 12,470 inhabitants per km², or 114 times the national average (110 inhabitants/km²), which ranks it 27^th in France for density.

Saint-Ouen-sur-Seine is located in the Seine-Saint-Denis department (93), in the Île-de-France region, where it ranks 39^th 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: Le Blanc-Mesnil (pop. 62,547), Pantin (pop. 62,083), Bobigny (pop. 57,035), Épinay-sur-Seine (pop. 52,944), Sevran (pop. 52,682), Bondy (pop. 50,762).

Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 93070. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.