Cachan Population and Area (Val-de-Marne)
Largest city in France 2026: up-to-date figures for Cachan (Val-de-Marne)
Cachan: Population and Area
With 31,434 inhabitants (INSEE total population in force on January 1, 2026), Cachan is the 271st most populous town in France in 2026 and the 17th most populous in the Val-de-Marne department, out of 47 communes. It covers 2.74 km² (33,748th largest area in France, 38th largest in the department), with a population density of 11,472 inhabitants per km², or 105 times the national average (110 inhabitants/km²), which ranks it 33rd in France for density.
Cachan is located in the Val-de-Marne department (94), in the Île-de-France region, where it ranks 93rd by population out of 1,266 communes. The most populous town in the Val-de-Marne department is Vitry-sur-Seine (94,393 inhabitants); the department is home to 1,435,612 people over 245 km².
See the full ranking of communes in the Val-de-Marne department and the regional ranking: largest city in Île-de-France.
Towns of similar size in the Val-de-Marne department: Villiers-sur-Marne (pop. 33,313), Thiais (pop. 33,141), Nogent-sur-Marne (pop. 32,701), L'Haÿ-les-Roses (pop. 31,394), Fresnes (pop. 29,644), Charenton-le-Pont (pop. 29,019).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 94016. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.