Largest city in the Orne department: the 2026 ranking

The 381 towns of the Orne department (61) ranked by population, area and density, based on the official INSEE population figures in force in 2026.

The largest city in the Orne department is Alençon, with 26,175 inhabitants (ranked 350^th in France by population). The largest town by area is Gouffern en Auge (166 km²). Alençon is also the most densely populated town, with 2,451 inhabitants per km². At the other end of the ranking, Le Champ-de-la-Pierre has only 28 inhabitants.

The Orne department has 282,417 inhabitants over 6,103 km², a density of 46 inhabitants per km², 2.4 times lower than the national average (110 per km²). It accounts for 8.3% of the population of Normandy, the region it has belonged to since the 2016 reform (formerly Lower Normandy): see the ranking of the largest cities in Normandy.

The 20 largest cities in the Orne department by population

#	Town	Population	km²	per km²	France rank
1	Alençon	26,175	11	2,451	350^th
2	Flers	14,745	21	697	686^th
3	Argentan	13,939	18	767	725^th
4	L'Aigle	7,886	18	438	1,389^th
5	La Ferté Macé	5,365	32	168	2,125^th
6	Tinchebray-Bocage	4,875	91	54	2,342^nd
7	Sées	4,600	40	114	2,485^th
8	Athis-Val de Rouvre	4,287	77	56	2,674^th
9	Domfront en Poiraie	4,226	65	65	2,708^th
10	Mortagne-au-Perche	4,141	8.6	482	2,771^st
11	Saint-Germain-du-Corbéis	3,724	7.5	495	3,099^th
12	Gouffern en Auge	3,710	166	22	3,107^th
13	Val-au-Perche	3,403	63	54	3,387^th
14	Saint-Georges-des-Groseillers	3,256	7.1	461	3,538^th
15	Vimoutiers	3,090	16	191	3,733^rd
16	La Ferté-en-Ouche	2,997	132	23	3,837^th
17	Tourouvre au Perche	2,990	94	32	3,846^th
18	Rives d'Andaine	2,919	37	79	3,936^th
19	Longny les Villages	2,850	152	19	4,014^th
20	Bagnoles de l'Orne Normandie	2,764	16	176	4,110^th

Largest towns by area in the Orne department

#	Town	Population	km²	per km²	France rank
1	Gouffern en Auge	3,710	166	22	68^th
2	Longny les Villages	2,850	152	19	89^th
3	La Ferté-en-Ouche	2,997	132	23	129^th
4	Tourouvre au Perche	2,990	94	32	276^th
5	Tinchebray-Bocage	4,875	91	54	295^th
6	Perche en Nocé	2,011	87	23	335^th
7	Juvigny Val d'Andaine	2,125	80	27	415^th
8	Putanges-le-Lac	2,135	77	28	442^nd
9	Athis-Val de Rouvre	4,287	77	56	445^th
10	Belforêt-en-Perche	1,513	75	20	468^th

Most densely populated towns in the Orne department

#	Town	Population	km²	per km²	France rank
1	Alençon	26,175	11	2,451	370^th
2	Le Mêle-sur-Sarthe	672	0.6	1,084	874^th
3	Bellême	1,471	1.7	860	1,111^th
4	Argentan	13,939	18	767	1,237^th
5	Flers	14,745	21	697	1,357^th
6	Damigny	2,505	4.8	521	1,782^nd
7	Saint-Germain-du-Corbéis	3,724	7.5	495	1,877^th
8	Mortagne-au-Perche	4,141	8.6	482	1,927^th
9	Saint-Georges-des-Groseillers	3,256	7.1	461	1,998^th
10	L'Aigle	7,886	18	438	2,095^th

All towns in the Orne department (381)

INSEE total population in parentheses. Each town page gives its area, density, national and departmental rankings, and neighboring towns.

Other departments in Normandy

Calvados (14) Eure (27) Manche (50) Seine-Maritime (76) All departments

Sources: INSEE, official population figures in force on January 1, 2026 (total population); land area: IGN / Observatoire des territoires. Rankings computed across the 34,858 communes in the database.