Fewer flats than 83% of compared French towns: 12%
Against a figure of 11% in the typical compared French town, the share of residents aged 15 to 24 in Trémuson comes in at 9%. On households headed by a manager or professional, Trémuson sits lower than 77% of compared French towns: 5.9%. At the 2023 Census Trémuson was home to 2,259 people in 980 households. Empty homes make up about one in 23 here (4.3%).
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.
A growing town: +15% since 2012, faster than 82% 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
The first five years brought +5%; the six to 2023, +9%.
Trémuson is older than 50% of compared French towns: a median age of 44.1
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Trémuson 44.1. The median compared French town: 44.
Lower than in 51% of compared French towns: 22% of residents are 65 or over.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Côtes-d'Armor 52.9%, France 51.8%.
Below 76% of compared French towns: 30% of households are one person living alone
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
The figure for couples with children is 27% in Trémuson and 25% in the typical compared French town. Single-parent households account for 11%. Elsewhere, 35% of households are one person living alone in the typical compared French town.
Trémuson ranks below 76% of compared French towns on households without a car: 6.6%
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
At 1.2%, second homes sit close to the figure in the typical compared French town. As a yardstick, just over one in ten households have no car in the typical compared French town. Households in social housing are rarer here than in 54% of compared French towns.
€26,170 a year is the median standard of living here
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.
Per consumption unit, half of residents live on more than €26,170 a year: higher than in 52% of compared French towns. The poverty rate is 8.0%.
Trémuson sits below 73% of compared French towns for households headed by a retired person (28%)
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
Households headed by a manual worker: 13% of the total. 5.9% of Trémuson’s households are headed by a manager or professional, against 9.4% in the median compared French town; 28% by a retired person (32%).
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Only 2.4% of residents are immigrants in Trémuson
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 figure for foreign nationals is 1.7% in Trémuson and 4.3% in the typical compared French town. That is lower than in 88% of compared French towns; the median compared commune in Côtes-d'Armor has 2.7%. In the typical compared French town, 6.5% of residents are immigrants.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
19% of residents 15 and over are single, fewer than in 95% 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
Married residents make up 44%, against 43% in the typical compared French town. Measured more widely, 25% of residents 15 and over are single in the typical compared French town.
Graduates of higher education: 26%, a lower share than 65% of compared French towns
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
Across Trémuson, 19% of adults out of school have no qualification. Measured more widely, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 2,259 to 2,582 people, the 16th 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Older than Trémuson: 4 of the 6 towns nearby
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trémuson | 44.1 | 22% | 1.2% | 2.4% |
| Ploufragan 11,507 · 3.2 mi | 47.3 | 25% | 1.8% | 6.2% |
| Pordic 7,454 · 3.5 mi | 49.3 | 26% | 7.7% | 1.7% |
| Saint-Brieuc 44,364 · 4.1 mi | 42.3 | 23% | 5% | 9.6% |
| Plérin 14,425 · 4.2 mi | 50.2 | 28% | 7.7% | 2.8% |
| Plélo 3,344 · 4.3 mi | 41.7 | 18% | 5.7% | 2.1% |
| Trégueux 8,450 · 5.6 mi | 48.6 | 29% | 1.2% | 4.1% |
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 Trémuson
What is the population of Trémuson?
2,259 at INSEE’s 2023 census, 15% more than in 2012 (1,963).
How old are Trémuson’s residents?
The median age is 44.1, older than 50% of compared French towns. 21% are under 18 and 22% 65 or older.
How many second homes are there in Trémuson?
13, with occasional dwellings: 1.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trémuson?
INSEE counts 54 immigrants (born abroad, not French at birth), 2.4% of residents, and 40 foreign nationals (1.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trémuson?
€26,170 a year per consumption unit in 2023 (median of compared French towns €25,970); 8.0% of residents live below the poverty line. 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.