Saint-Brieuc Population and Area (Côtes-d'Armor)
Largest city in France 2026: up-to-date figures for Saint-Brieuc (Côtes-d'Armor)
Saint-Brieuc: Population and Area
With 45,736 inhabitants (INSEE total population in force on January 1, 2026), Saint-Brieuc is the 161st most populous town in France in 2026 and the most populous in the Côtes-d'Armor department, out of 344 communes. It covers 22 km² (6,979th largest area in France, 121st largest in the department), with a population density of 2,090 inhabitants per km², or 19 times the national average (110 inhabitants/km²), which ranks it 431st in France for density.
Saint-Brieuc is located in the Côtes-d'Armor department (22), in the Brittany region, where it ranks 7th by population out of 1,202 communes. It is the most populous town in the Côtes-d'Armor department, which is home to 629,517 people over 6,878 km².
See the full ranking of communes in the Côtes-d'Armor department and the regional ranking: largest city in Brittany.
Towns of similar size in the Côtes-d'Armor department: Lannion (pop. 21,041), Lamballe-Armor (pop. 17,746), Dinan (pop. 15,351).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 22278. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.