Lanmérin ranks above 99% of compared French towns on couples with children: 42%
The share of households in social housing is 1.8%, against 12% in the typical compared French town. 575 residents in 220 households: that is Lanmérin at the 2023 Census. For Lanmérin, the census puts residents aged 15 to 24 at 14%. Households headed by a manual worker are more common here than in 95% of compared French towns.
Throughout this page, the Côtes-d'Armor median and the France median are the median of compared communes (those with an overall grade), each figure its own median. Source: INSEE, census 2023.
What stands out about the people of Lanmérin
A town of families
42% of households are couples with children and 8.9% single parents with children; 21% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Lanmérin has grown +7%, faster than 59% of compared French towns
Residents at INSEE’s last three censuses, each recast in the 2026 commune boundaries. France has no yearly estimate by commune between censuses.
2012 to 2023
2017 to 2023
For comparison, the median compared French town changed +5% and the median Côtes-d'Armor town +3%. The first five years brought +12%; the six to 2023, −4%.
A smaller share of residents aged 65 and over than 92% of compared French towns: 14%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Lanmérin 41.2. The median compared French town: 44.
The median age in Lanmérin is 41.2, lower than in 71% of compared French towns. On average, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Côtes-d'Armor 52.9%, France 51.8%.
Only 23% of households are one person living alone in Lanmérin
A household is everyone who shares a main home (résidence principale). Household types come from INSEE’s fuller sample of a quarter of census forms.
Against the Côtes-d'Armor median and the France median
Living alone · share
Single-parent households: 8.9% here and 10% in the typical compared French town. In the typical compared French town, one-person households come to 35%. On average, 2.6 people share a household.
Only 0.4% of homes are flats in Lanmérin
Every home the census counted: main residences, second homes and occasional dwellings (INSEE counts them together), and empty homes. Owning and renting are on Cost of living.
All homes · share of homes
Type of home
Cars per household · share of households
5.3% of homes stand empty, against 6.7% in the typical compared French town. By way of comparison, 30% of homes are flats in the typical compared French town. On the census count, 2.7% of households have no car. More second homes than in just over three quarters of compared French towns: 4.9%.
The median resident lives on €24,710 a year per consumption unit
The standard of living (niveau de vie) is a household’s disposable income after taxes and benefits, divided by its consumption units (UC) to allow for its size and make-up: 1 for the first adult, 0.5 for each other person 14 or older, 0.3 for each child under 14.
Medians of compared communes. Source: INSEE, Filosofi 2023.
The midpoint of living standards here is €24,710 a year per consumption unit, lower than in 64% of compared French towns.
Households headed by a manager or professional make up 4.5% in Lanmérin, less than in 90% of compared French towns
Households by the socio-professional group (PCS) of their reference person, INSEE’s own categories. Jobs and commuting are on the Work & commute page.
Households by reference person’s group · share of households
Here 29% of households are headed by a retired person, where the figure in the typical compared French town is 32%. As a yardstick, 9.4% of households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A smaller share of immigrants than 97% of compared French towns: 1.4%
INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.
Share of residents · census 2023
Immigrant (immigré)
Born abroad, not French at birth. Someone stays an immigrant after becoming French. A French citizen born abroad (for example in Algeria before 1962) is not one.
Foreign national (étranger)
Not a French citizen today, wherever born. A child born in France to foreign parents can be a foreign national without being an immigrant.
The median compared commune in Côtes-d'Armor has 2.7%; immigrants here make up a share lower than in 97% of compared French towns. In the typical compared French town, immigrants come to 6.5%. Across Lanmérin, 0.4% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents: 46%, a higher share than 71% of compared French towns
Residents 15 and over by how they live: the census asks both the legal status and whether people live as a couple.
Residents 15 and over · share
The share of single residents stands at 26%. Married residents make up 43% in the typical compared French town.
A smaller share of adults with no qualification than 83% of compared French towns: 13%
Highest diploma of residents 15 and over who have left education, in French terms: the levels don’t map one-to-one to UK or U.S. ones.
Highest diploma · 15 and over, out of education
The share of graduates of higher education stands at 29%. Set beside that, 19% of adults out of school have no qualification in the typical compared French town.
Among 41 French towns of 575 to 2,582 people, the 6th youngest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Lanmérin is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Lanmérin | 41.2 | 14% | 4.9% | 1.4% |
| Louannec 3,019 · 4.4 mi | 57.5 | 39% | 15% | 2% |
| La Roche-Jaudy 2,629 · 5.1 mi | 49 | 26% | 13% | 3.4% |
| Lannion 20,315 · 5.1 mi | 46.2 | 26% | 6.2% | 5.9% |
| Ploubezre 3,780 · 5.2 mi | 43.7 | 23% | 6.8% | 2.6% |
| Penvénan 2,584 · 5.9 mi | 63.3 | 46% | 41% | 2.4% |
| Perros-Guirec 7,336 · 6.8 mi | 62.4 | 45% | 41% | 2.7% |
Health, work, housing and schools
What this data can and can’t tell you
- Census 2023. INSEE’s census is a rolling survey: a fifth of small communes each year, 8% of homes in large ones each year. “2023” pools the surveys of 2021 to 2025, so the figures describe the town around 2023, not on one day.
- Medians of compared communes. The comparisons are the median of the département’s compared communes and of France’s (those with an overall grade), each figure its own median: not the total for the département or for France, which large cities pull towards their own figures.
- Immigrants and foreign nationals. INSEE’s two measures: an immigrant was born abroad without French nationality; a foreign national isn’t French today. Neither is a count of people born abroad, which INSEE doesn’t publish by commune.
- Second homes. Homes used for holidays or weekends, with occasional dwellings (kept for work, for example), which INSEE counts together. Their owners are counted where they live, not here.
- Standard of living. INSEE’s Filosofi: disposable income per consumption unit, from tax and benefit files, 2023. The poverty rate is the share of residents below 60% of France’s median. Not published for the smallest communes.
- What France doesn’t ask. The French census asks nothing about ethnicity, religion, language or health, so this page has no such section.
Questions about who lives in Lanmérin
What is the population of Lanmérin?
575 at INSEE’s 2023 census, 7% more than in 2012 (537).
How old are Lanmérin’s residents?
The median age is 41.2, younger than 71% of compared French towns. 29% are under 18 and 14% 65 or older.
How many second homes are there in Lanmérin?
12, with occasional dwellings: 4.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lanmérin?
INSEE counts 8 immigrants (born abroad, not French at birth), 1.4% of residents, and 2 foreign nationals (0.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lanmérin?
€24,710 a year per consumption unit in 2023 (median of compared French towns €25,970). Source: INSEE, Filosofi.
Sources: INSEE, census 2023 (population, ages, households, homes, marital status, diplomas, immigrants, foreign nationals, employment), 2026 geography · INSEE, Filosofi 2023 (standard of living, poverty) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.