Saint-Quentin Population and Area (Aisne)
Largest city in France 2026: up-to-date figures for Saint-Quentin (Aisne)
Saint-Quentin Density
2,392 inhabitants/km²TOP #378
Saint-Quentin: Population and Area
With 53,963 inhabitants (INSEE total population in force on January 1, 2026), Saint-Quentin is the 119th most populous town in France in 2026 and the most populous in the Aisne department, out of 797 communes. It covers 23 km² (6,620th largest area in France, 33rd largest in the department), with a population density of 2,392 inhabitants per km², or 22 times the national average (110 inhabitants/km²), which ranks it 378th in France for density.
Saint-Quentin is located in the Aisne department (02), in the Hauts-de-France region (formerly Picardie), where it ranks 9th by population out of 3,782 communes. It is the most populous town in the Aisne department, which is home to 534,380 people over 7,358 km².
See the full ranking of communes in the Aisne department and the regional ranking: largest city in Hauts-de-France.
Towns of similar size in the Aisne department: Soissons (pop. 28,664), Laon (pop. 24,809), Château-Thierry (pop. 15,366).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 02691. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.