A lower share of households without a car than 94% of compared French towns, at 4%
Set against 12% in the typical compared French town, 3.6% of households rent social housing (HLM) in Trédion. At the 2023 Census Trédion was home to 1,400 people in 580 households. In Trédion, 8.2% of homes are flats. Compared with other places, one-person households are scarce here: 27%, fewer than in 89% of compared French towns.
Throughout this page, the Morbihan 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 Trédion
One home in nine is a second home
The census counted 77 second homes and occasional dwellings in Trédion, 11% of its 690 homes: higher than in 89% of compared French towns. 61% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Growing fast
Trédion had 1,148 residents at the 2012 census and 1,400 in 2023, up 22%: faster growth than in 92% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
11% of homes in Trédion are second homes
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, 12% moved in during the last two years and 17% have stayed three decades or more. Typically, 2.1% of homes are second homes in the typical compared French town. On empty homes, Trédion sits lower than 63% of compared French towns: 5.8%.
A +22% change since 2012: Trédion grew faster than 92% 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
In two steps, +11% to 2017 and +10% after, the town’s change compares with +5% for the median compared French town and +7% in Morbihan.
Trédion is younger than 80% of compared French towns: a median age of 39.7
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Trédion 39.7. The median compared French town: 44.
Set against 11% in the typical compared French town, 8.4% of residents are 15 to 24 in Trédion. Here, 17% of residents are 65 or over.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Morbihan 51.6%, France 51.8%.
Trédion sits above 82% of compared French towns for couples with children (32%)
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 Morbihan median and the France median
Living alone · share
Households here average 2.4 people each. Trédion has fewer single-parent households than 85% of compared French towns, at 7.5%. For comparison, a quarter of households are couples with children in the typical compared French town.
A median of €25,450 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 median standard of living in Trédion is €25,450 a year per consumption unit: lower than in 55% of compared French towns.
Households headed by a manager or professional make up 4.2% in Trédion, less than in 91% 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
A quarter of households are headed by a manual worker; in the typical compared French town the figure is 14%. Compared with other places, households headed by a retired person are scarce here: 26%, fewer than in four fifths of compared French towns. Set beside that, 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 98% of compared French towns: 1.3%
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 Morbihan has 2.3%; immigrants here make up a share lower than in 98% of compared French towns. Against that, 6.5% of residents are immigrants in the typical compared French town. Foreign nationals: 0.9% of the total.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents: 20%, a lower share than 93% 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
46% of residents 15 and over are married and 13% in a PACS, against 43% and 6.1% in the median compared French town; 5.1% are widowed. The share of single residents in the typical compared French town is 25%.
Adults with no qualification make up 13% in Trédion, less than in 83% 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
30% of adults out of school hold a higher-education qualification, fewer than in 51% of compared French towns. In the typical compared French town, nearly a fifth of adults out of school have no qualification.
41 French towns of 1,400 to 2,582 people: this is the 2nd 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Trédion 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 |
|---|---|---|---|---|
| Trédion | 39.7 | 17% | 11% | 1.3% |
| Plumelec 2,754 · 3.5 mi | 45.7 | 21% | 7.7% | 1.3% |
| Elven 6,651 · 3.8 mi | 41.4 | 18% | 2.4% | 2.6% |
| Sérent 3,429 · 4.8 mi | 43.2 | 22% | 7.3% | 2.2% |
| Monterblanc 3,356 · 6 mi | 41.2 | 15% | 1.6% | 1.8% |
| Saint-Jean-Brévelay 2,869 · 7.2 mi | 45.5 | 22% | 2.8% | 3.3% |
| Saint-Nolff 3,990 · 7.4 mi | 46.8 | 23% | 1.6% | 2.9% |
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 Trédion
What is the population of Trédion?
1,400 at INSEE’s 2023 census, 22% more than in 2012 (1,148).
How old are Trédion’s residents?
The median age is 39.7, younger than 80% of compared French towns. 26% are under 18 and 17% 65 or older.
How many second homes are there in Trédion?
77, with occasional dwellings: 11% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trédion?
INSEE counts 18 immigrants (born abroad, not French at birth), 1.3% of residents, and 13 foreign nationals (0.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trédion?
€25,450 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.