Lannion Population and Area (Côtes-d'Armor)
Largest city in France 2026: up-to-date figures for Lannion (Côtes-d'Armor)
Lannion: Population and Area
With 21,041 inhabitants (INSEE total population in force on January 1, 2026), Lannion is the 457th most populous town in France in 2026 and the 2nd most populous in the Côtes-d'Armor department, out of 344 communes. It covers 44 km² (1,642nd largest area in France, 18th largest in the department), with a population density of 479 inhabitants per km², or 4.4 times the national average (110 inhabitants/km²), which ranks it 1,938th in France for density.
Lannion is located in the Côtes-d'Armor department (22), in the Brittany region, where it ranks 10th by population out of 1,202 communes. The most populous town in the Côtes-d'Armor department is Saint-Brieuc (45,736 inhabitants); the department 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: Saint-Brieuc (pop. 45,736), Lamballe-Armor (pop. 17,746), Dinan (pop. 15,351), Plérin (pop. 14,880).
Sources: INSEE, official population figures in force on January 1, 2026 (total population); areas: IGN / Observatoire des territoires; INSEE code 22113. Rankings are calculated across the 34,858 communes of metropolitan and overseas France in our database.