Éternoz-Vallée-du-Lison is older than 93% of compared French towns: a median age of 54
Households in social housing are rarer here than in 99% of compared French towns. Census figures put single-parent households at 2.8% in Éternoz-Vallée-du-Lison. The 2023 Census put the town’s population at 343, in 170 households. With flats at 11%, Éternoz-Vallée-du-Lison is behind 85% of compared French towns on that count.
Throughout this page, the Doubs 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 Éternoz-Vallée-du-Lison
One home in five is a second home
The census counted 52 second homes and occasional dwellings in Éternoz-Vallée-du-Lison, 20% of its 260 homes: higher than in 93% of compared French towns. 88% 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 Éternoz-Vallée-du-Lison’s residents are under 54 and half over; the median of compared French towns is 44. 37% are 65 or older (France median 22%), 14% 80 or older. Ages ↓
Fewer residents than in 2012
Éternoz-Vallée-du-Lison had 359 residents at the 2012 census and 343 in 2023, down 4%: slower growth than in 86% of compared French towns. Population ↓
Empty homes
The census found 31 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
In Éternoz-Vallée-du-Lison, 20% of homes are second homes, more than in 93% 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
Households that moved in under two years ago: 4.6%. Those in their home 30 years or more: 37%. Just over one in ten homes stand empty, more than in 88% of compared French towns. In the typical compared French town, the share of second homes is 2.1%. The share of households without a car trails 63% of compared French towns: 8.5%.
Slower than most: −4% since 2012, behind 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
For comparison, the median compared French town changed +5% and the median Doubs town −1%. The first five years brought −3%; the six to 2023, −2%.
Fewer residents aged 15 to 24 than 99% of compared French towns: 5.7%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Éternoz-Vallée-du-Lison 54. The median compared French town: 44.
The figure for residents aged 65 and over is 37% in Éternoz-Vallée-du-Lison and 22% in the typical compared French town. By way of comparison, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
47% women, 53% men
About 115 men for every 100 women. Median share of women: Doubs 51.3%, France 51.8%.
Couples with children make up 21% in Éternoz-Vallée-du-Lison, less than in 72% 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 Doubs median and the France median
Living alone · share
Against a figure of 35% in the typical compared French town, the share of one-person households in Éternoz-Vallée-du-Lison comes in at 38%. Average household size: 2 people. The wider picture: 25% of households are couples with children in the typical compared French town.
Median living standard: €23,190 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.
Per consumption unit, half of residents live on more than €23,190 a year: lower than in 80% of compared French towns.
46% of households are headed by a retired person, a share 93% of compared French towns don’t reach
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 figure for households headed by a manager or professional is 6% in Éternoz-Vallée-du-Lison and 9.4% in the typical compared French town. Across the comparison, nearly a third of households are headed by a retired person in the typical compared French town. Here, 16% of households are headed by a manual worker.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Fewer immigrants than 91% of compared French towns: 2.1%
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.
4.3% of residents are foreign nationals in the typical compared French town, against 1.8% in Éternoz-Vallée-du-Lison. 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.
A larger share of married residents than 95% of compared French towns: 51%
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
20% of residents 15 and over are single (typical compared French town: 25%). Married residents: 43% in the typical compared French town, for comparison.
More adults with no qualification than 87% of compared French towns: 28%
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
By its share of graduates of higher education (24%), Éternoz-Vallée-du-Lison is below 71% of compared French towns. To put it in context, 19% of adults out of school have no qualification in the typical compared French town.
Of 41 French towns its size (343 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
1 in 6 nearby towns have a higher median age than Éternoz-Vallée-du-Lison
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 Éternoz-Vallée-du-Lison
What is the population of Éternoz-Vallée-du-Lison?
343 at INSEE’s 2023 census, 4% fewer than in 2012 (359).
How old are Éternoz-Vallée-du-Lison’s residents?
The median age is 54, older than 93% of compared French towns. 19% are under 18 and 37% 65 or older.
How many second homes are there in Éternoz-Vallée-du-Lison?
52, with occasional dwellings: 20% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Éternoz-Vallée-du-Lison?
INSEE counts 7 immigrants (born abroad, not French at birth), 2.1% of residents, and 6 foreign nationals (1.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Éternoz-Vallée-du-Lison?
€23,190 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 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.