Athis-Mons Population and Area (Essonne)
Largest city in France 2026: up-to-date figures for Athis-Mons (Essonne)
Athis-Mons: Population and Area
With 36,899 inhabitants (INSEE total population in force on January 1, 2026), Athis-Mons is the 226th most populous town in France in 2026 and the 6th most populous in the Essonne department, out of 194 communes. It covers 8.56 km² (21,725th largest area in France, 88th largest in the department), with a population density of 4,311 inhabitants per km², or 39 times the national average (110 inhabitants/km²), which ranks it 180th in France for density.
Athis-Mons is located in the Essonne department (91), in the Île-de-France region, where it ranks 76th 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: Massy (pop. 52,023), Savigny-sur-Orge (pop. 37,876), Palaiseau (pop. 37,773), Sainte-Geneviève-des-Bois (pop. 35,744), Vigneux-sur-Seine (pop. 31,607), Ris-Orangis (pop. 31,332).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 91027. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.