More households headed by a manager or professional than 82% of compared French towns: 17%
Residents aged 65 and over are rarer here than in four fifths of compared French towns. Households in social housing account for 22%. Trévoux counted 7,013 residents and 3,120 households at the 2023 Census. In the typical compared French town, the share of flats is 30%; Trévoux has 57%.
Throughout this page, the Ain 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: +4% since 2012, behind 51% 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 median Ain town changed +13% and the median compared French town +5%; here the first five years brought +2% and the next six +2%.
A median age of 40.6: Trévoux is younger than 76% 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
■ Trévoux 40.6. The median compared French town: 44.
11% of residents are 15 to 24, about the same as in the typical compared French town.
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women. Median share of women: Ain 51.0%, France 51.8%.
A higher share of single-parent households than 78% of compared French towns, at 12%
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 Ain median and the France median
Living alone · share
The typical household size is 2.2 people. The benchmark for single-parent households in the typical compared French town: 10%. 27% of households are couples with children, or about one in four. On one-person households, Trévoux sits higher than 59% of compared French towns: 37%.
Empty homes make up 8.5% in Trévoux, more than in 69% of compared French towns
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
Some just over one in ten households are newcomers of under two years, against 13% who have been there 30 years or more. Empty homes make up 6.7% in the typical compared French town. On the census count, 8.7% of households have no car. At 2.8%, the share of second homes is higher than in 59% of compared French towns.
€27,200 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.
Half of residents live in households above €27,200 a year per consumption unit and half below; the level is higher than in 63% of compared French towns. Residents below the poverty line make up 14.0%.
Households headed by a retired person make up 29% in Trévoux, less than in 70% 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
13% of households are headed by a manual worker; in the typical compared French town the figure is 14%. Against that, nearly a third of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Trévoux sits above 80% of compared French towns for immigrants (13%)
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 Ain has 8.5%; immigrants here make up a share higher than in 80% of compared French towns. Foreign nationals come to 10% in Trévoux, about one in ten. Immigrants make up 6.5% 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.
Trévoux ranks below 70% of compared French towns on married residents: 40%
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 figure for single residents is 28% in Trévoux and 25% in the typical compared French town. As a yardstick, 43% of residents 15 and over are married in the typical compared French town.
Above 84% of compared French towns: 42% of adults out of school hold a higher-education qualification
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
Set against 19% in the typical compared French town, 17% of adults out of school have no qualification in Trévoux. Typically, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 6,931 to 7,102 people, the 14th 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.
The youngest is Bailly-Romainvilliers (34.9), the oldest Binic-Étables-sur-Mer (56.4).
Nearby, 5 of 6 towns have older populations than Trévoux
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Trévoux
What is the population of Trévoux?
7,013 at INSEE’s 2023 census, 4% more than in 2012 (6,714).
How old are Trévoux’s residents?
The median age is 40.6, younger than 76% of compared French towns. 24% are under 18 and 17% 65 or older.
How many second homes are there in Trévoux?
98, with occasional dwellings: 2.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trévoux?
INSEE counts 880 immigrants (born abroad, not French at birth), 13% of residents, and 730 foreign nationals (10%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trévoux?
€27,200 a year per consumption unit in 2023 (median of compared French towns €25,970); 14.0% 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.