A median age of 57: Colmier-le-Bas is older than 96% of compared French towns
Couples with children are rarer here than in 99% of compared French towns. In 2023, the Census found 22 residents in Colmier-le-Bas, living in 11 households. The share of flats stands at 4.5%. Compared with 6.7% in the typical compared French town, nearly one in ten homes stand empty here.
Throughout this page, the Haute-Marne 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 Colmier-le-Bas
One home in two is a second home
The census counted 9 second homes and occasional dwellings in Colmier-le-Bas, 41% of its 22 homes: higher than in 96% of compared French towns. 100% 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 Colmier-le-Bas’ residents are under 57 and half over; the median of compared French towns is 44. 36% are 65 or older (France median 22%), 23% 80 or older. Ages ↓
Many people living alone
50% of Colmier-le-Bas’ households are one person: higher than in 94% of compared French towns; 63% of residents 65 and over live alone. Households ↓
Fewer residents than in 2012
Colmier-le-Bas had 23 residents at the 2012 census and 22 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.
A higher share of second homes than 96% of compared French towns, at 41%
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 in social housing are rarer here than in 99% of compared French towns. To put it in context, 2.1% of homes are second homes in the typical compared French town.
From 2012 to 2023, 86% of compared French towns grew faster than Colmier-le-Bas: −4%
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 Haute-Marne town changed −9% and the median compared French town +5%; here the first five years brought −4% and the next six ±0%.
Above 95% of compared French towns: 36% 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
■ Colmier-le-Bas 57. The median compared French town: 44.
9.1% of residents are 15 to 24; in the typical compared French town the figure is 11%. The usual figure: 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
36% women, 64% men
About 57 women for every 100 men. Median share of women: Haute-Marne 52.0%, France 51.8%.
Colmier-le-Bas ranks above 94% of compared French towns on one-person households: 50%
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 Haute-Marne median and the France median
Living alone · share
Single-parent households are rarer here than in 99% of compared French towns. Set beside that, just over a third of households are one person living alone in the typical compared French town. Households average 2 people.
50% of households are headed by a manager or professional, a share 99% 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
In the typical compared French town, the share of households headed by a retired person is 32%; Colmier-le-Bas has 50%. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
More foreign nationals than 90% of compared French towns: 14%
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.
Against a figure of 6.5% in the typical compared French town, the share of immigrants in Colmier-le-Bas comes in at 14%. Immigrants make up a share higher than in 82% of compared French towns; the median compared commune in Haute-Marne has 7.8%. By way of comparison, 4.3% of residents are foreign nationals 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.
A lower share of married residents than 99% of compared French towns, at 20%
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
In Colmier-le-Bas, 45% of residents 15 and over are single, beside 25% in the typical compared French town. Married residents make up 43% in the typical compared French town.
Colmier-le-Bas: 25% of adults out of school have no qualification, above 78% 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
Census figures put graduates of higher education at 30% in Colmier-le-Bas. The comparison figure for adults with no qualification is 19% in the typical compared French town.
5th highest median age among 41 French towns of 22 to 2,582
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).
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 Colmier-le-Bas
What is the population of Colmier-le-Bas?
22 at INSEE’s 2023 census, 4% fewer than in 2012 (23).
How old are Colmier-le-Bas’ residents?
The median age is 57, older than 96% of compared French towns. 9.1% are under 18 and 36% 65 or older.
How many second homes are there in Colmier-le-Bas?
9, with occasional dwellings: 41% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Colmier-le-Bas?
INSEE counts 3 immigrants (born abroad, not French at birth), 14% of residents, and 3 foreign nationals (14%). The medians of compared French towns are 6.5% and 4.3%.
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.