Saint-Michel-sur-Orge Population and Area (Essonne)

Largest city in France 2026: up-to-date figures for Saint-Michel-sur-Orge (Essonne)

Saint-Michel-sur-Orge Population

21,901 inhabitants
TOP #433

← #432 Gardanne #434 Chaumont →

Saint-Michel-sur-Orge Area

5 km²
TOP #28968

← #28967 Saint-Jean-d'Ormont #28969 Chavigny →

Saint-Michel-sur-Orge Density

4,140 inhabitants/km²
TOP #189

← #188 Villeneuve-Saint-Georges #190 Villiers-le-Bel →

Department: Essonne (91), Region: Île-de-France, INSEE code: 91570

Saint-Michel-sur-Orge: Population and Area

With 21,901 inhabitants (INSEE total population in force on January 1, 2026), Saint-Michel-sur-Orge is the 433^rd most populous town in France in 2026 and the 21^st most populous in the Essonne department, out of 194 communes. It covers 5.29 km² (28,968^th largest area in France, 145^th largest in the department), with a population density of 4,140 inhabitants per km², or 38 times the national average (110 inhabitants/km²), which ranks it 189^th in France for density.

Saint-Michel-sur-Orge is located in the Essonne department (91), in the Île-de-France region, where it ranks 159^th by population out of 1,266 communes. The most populous town in the Essonne department is Évry-Courcouronnes (67,272 inhabitants); the department is home to 1,351,891 people over 1,804 km².

See the full ranking of communes in the Essonne department and the regional ranking: largest city in Île-de-France.

Towns of similar size in the Essonne department: Montgeron (pop. 24,316), Gif-sur-Yvette (pop. 23,077), Longjumeau (pop. 22,131), Morsang-sur-Orge (pop. 21,850), Chilly-Mazarin (pop. 20,539), Juvisy-sur-Orge (pop. 19,375).

Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 91570. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.