Fewer flats than 99% of compared French towns: 0.4%
10% of households are single parents in the typical compared French town, against 6.4% in Trégonneau. Households in social housing are rarer here than in 98% of compared French towns. The 2023 Census counted 515 residents in 230 households. The share of households headed by a retired person stands at 40%.
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.
Slower than most: −2% since 2012, behind 79% 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
Here the change came as +9% to 2017, then −11% to 2023. Medians for comparison: +5% across compared French towns, +3% in Côtes-d'Armor.
Below 67% of compared French towns: 20% of residents are 65 or over
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Trégonneau 42.9. The median compared French town: 44.
With a median age of 42.9, Trégonneau is younger than nearly three fifths of compared French towns. The census found that just over one in ten residents are 15 to 24 here. Against that, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
49% women, 51% men
About 106 men for every 100 women. Median share of women: Côtes-d'Armor 52.9%, France 51.8%.
More couples with children than 73% of compared French towns: 29%
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
31% of households are one person living alone (typical compared French town: 35%). Average household size: 2.3 people. For couples with children, the comparison in the typical compared French town is 25%.
Only 3.6% of homes stand empty in Trégonneau
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
12% of households arrived within the last two years, while 26% have stayed 30 years or more. For empty homes, the comparison in the typical compared French town is 6.7%. Few places have as many second homes: 6% here, more than in four fifths of compared French towns. With households without a car at 5.5%, Trégonneau is behind 84% of compared French towns on that count.
A median standard of living of €25,190 a year
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.
Living standards centre on €25,190 a year per consumption unit: lower than in 58% of compared French towns.
Only 6.3% of households are headed by a manager or professional in Trégonneau
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
The share of households headed by a manual worker is 17%, against 14% in the typical compared French town. In the typical compared French town, households headed by a manager or professional come to 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Below 88% of compared French towns: 2.3% of residents are immigrants
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.
Set against 4.3% in the typical compared French town, 2.1% of residents are foreign nationals in Trégonneau. The median compared commune in Côtes-d'Armor has 2.7%; immigrants here make up a share lower than in 88% of compared French towns. Elsewhere, 6.5% of residents are immigrants in the typical compared French town.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Trégonneau sits above 85% of compared French towns for married residents (48%)
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
Here just over a fifth of residents 15 and over are single, where the figure in the typical compared French town is 25%. Married residents: 43% in the typical compared French town, for comparison.
15% of adults out of school have no qualification, below 74% 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
Against a figure of 30% in the typical compared French town, the share of graduates of higher education in Trégonneau comes in at 25%. Adults with no qualification make up 19% in the typical compared French town.
The 10th youngest of 41 French towns of 515 to 2,582 people
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.
Trégonneau is younger than 5 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trégonneau | 42.9 | 20% | 6% | 2.3% |
| Pabu 2,771 · 3 mi | 54 | 36% | 3.2% | 3.6% |
| Guingamp 7,111 · 3.6 mi | 41 | 21% | 4% | 5.6% |
| Grâces 2,601 · 4.1 mi | 52.7 | 33% | 3.4% | 3.5% |
| Ploumagoar 5,414 · 5.3 mi | 45.5 | 24% | 2.5% | 1.7% |
| Bégard 4,889 · 6.2 mi | 47.9 | 25% | 5.5% | 2.1% |
| La Roche-Jaudy 2,629 · 9.3 mi | 49 | 26% | 13% | 3.4% |
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 Trégonneau
What is the population of Trégonneau?
515 at INSEE’s 2023 census, 2% fewer than in 2012 (527).
How old are Trégonneau’s residents?
The median age is 42.9, younger than 59% of compared French towns. 22% are under 18 and 20% 65 or older.
How many second homes are there in Trégonneau?
15, with occasional dwellings: 6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trégonneau?
INSEE counts 12 immigrants (born abroad, not French at birth), 2.3% of residents, and 11 foreign nationals (2.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trégonneau?
€25,190 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.