Tréguennec sits below 97% of compared French towns for couples with children (12%)
By its share of households in social housing (2.5%), Tréguennec is below 96% of compared French towns. This Finistère town had 311 residents in 160 households at the 2023 census. Across Tréguennec, 0.4% of homes are flats. Empty homes are rarer here than in 99% of compared French towns.
Throughout this page, the Finistère 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 Tréguennec
One home in two is a second home
The census counted 120 second homes and occasional dwellings in Tréguennec, 42% of its 280 homes: higher than in 96% of compared French towns. 97% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
An older town
Half of Tréguennec’s residents are under 53.6 and half over; the median of compared French towns is 44. 29% are 65 or older (France median 22%), 7.1% 80 or older. Ages ↓
Fewer residents than in 2012
Tréguennec had 325 residents at the 2012 census and 311 in 2023, down 4%: slower growth than in 86% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Tréguennec ranks above 96% of compared French towns on second homes: 42%
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
Of all households, 11% moved in during the last two years and 31% have stayed three decades or more. Set beside that, 2.1% of homes are second homes in the typical compared French town. Fewer households without a car than in 88% of compared French towns: 5%.
−4% since 2012: slower than 86% 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 years 2012 to 2017 brought −2%; 2017 to 2023, −2%. Over the whole period the median compared French town changed +5%, and the median Finistère town +4%.
A median age of 53.6: Tréguennec is older than 92% of compared French towns
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Tréguennec 53.6. The median compared French town: 44.
Residents aged 15 to 24 make up 8.7%, against 11% in the typical compared French town. For Tréguennec, the census puts residents aged 65 and over at 29%.
Women and men · all residents
48% women, 52% men
About 109 men for every 100 women. Median share of women: Finistère 51.7%, France 51.8%.
In Tréguennec, 38% of households are one person living alone, more than in 60% of compared French towns
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 Finistère median and the France median
Living alone · share
At 9.4%, the share of single-parent households is in line with the figure in the typical compared French town. In the typical compared French town, 35% of households are one person living alone. Households here average 1.9 people each.
€26,480 a year: the median standard of living
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.
At €26,480 a year per consumption unit, the median standard of living here is higher than in 56% of compared French towns.
Households headed by a retired person: 47%, a higher share than 95% 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
Households headed by a manual worker: 6.2% here and 14% in the typical compared French town. The benchmark for households headed by a retired person in the typical compared French town: 32%. In Tréguennec, 9.4% of households are headed by a manager or professional.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
In Tréguennec, 3.2% of residents are immigrants, fewer than in 80% of compared French towns
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 share of foreign nationals is 2.3%, against 4.3% in the typical compared French town. On average, 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.
Fewer married residents than 57% of compared French towns: 42%
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
Single residents make up about one in four here (26%). In the median compared French town 43% are married and 6.1% in a PACS; here it is 42% and 8.1%, and 7.8% are widowed.
Tréguennec ranks below 99% of compared French towns on adults with no qualification: 7.7%
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 Tréguennec comes in at 41%. Measured more widely, 19% of adults out of school have no qualification in the typical compared French town.
Among 41 French towns of 311 to 2,582 people, the 7th oldest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
4 in 6 nearby towns have a higher median age than Tréguennec
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Tréguennec | 53.6 | 29% | 42% | 3.2% |
| Plonéour-Lanvern 6,452 · 3 mi | 45.8 | 23% | 7.6% | 1.5% |
| Plomeur 3,904 · 4.7 mi | 49.8 | 27% | 14% | 1.7% |
| Pont-l'Abbé 8,484 · 5.4 mi | 53.8 | 33% | 9.9% | 2.9% |
| Penmarch 5,508 · 5.5 mi | 60.8 | 41% | 40% | 2.9% |
| Guilvinec 2,669 · 6.7 mi | 60.7 | 42% | 39% | 1.7% |
| Plobannalec-Lesconil 3,718 · 7.3 mi | 54.1 | 31% | 33% | 2% |
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 Tréguennec
What is the population of Tréguennec?
311 at INSEE’s 2023 census, 4% fewer than in 2012 (325).
How old are Tréguennec’s residents?
The median age is 53.6, older than 92% of compared French towns. 14% are under 18 and 29% 65 or older.
How many second homes are there in Tréguennec?
120, with occasional dwellings: 42% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Tréguennec?
INSEE counts 10 immigrants (born abroad, not French at birth), 3.2% of residents, and 7 foreign nationals (2.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Tréguennec?
€26,480 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 9, 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.