Châlons-en-Champagne Population and Area (Marne)
Largest city in France 2026: up-to-date figures for Châlons-en-Champagne (Marne)
Châlons-en-Champagne: Population and Area
With 43,914 inhabitants (INSEE total population in force on January 1, 2026), Châlons-en-Champagne is the 175th most populous town in France in 2026 and the 2nd most populous in the Marne department, out of 610 communes. It covers 26 km² (5,129th largest area in France, 55th largest in the department), with a population density of 1,686 inhabitants per km², or 15 times the national average (110 inhabitants/km²), which ranks it 551st in France for density.
Châlons-en-Champagne is located in the Marne department (51), in the Grand Est region (formerly Champagne-Ardenne), where it ranks 9th by population out of 5,115 communes. The most populous town in the Marne department is Reims (180,733 inhabitants); the department is home to 574,142 people over 8,169 km².
See the full ranking of communes in the Marne department and the regional ranking: largest city in Grand Est.
Towns of similar size in the Marne department: Reims (pop. 180,733), Épernay (pop. 22,628), Vitry-le-François (pop. 11,168), Tinqueux (pop. 10,886).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 51108. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.