17% of households are one person living alone, below 99% of compared French towns
Here 3.4% of households have no car, where the figure in the typical compared French town is 11%. 2.2% of homes stand empty, or about one in 45. Compared with other places, second homes are common here: 4.5%, more than in nearly three quarters of compared French towns. Blaisy had 65 residents in 31 households at the 2023 census.
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 Blaisy
Fewer residents than in 2012
Blaisy had 78 residents at the 2012 census and 65 in 2023, down 17%: slower growth than in 99% of compared French towns. Population ↓
An older town
Half of Blaisy’s residents are under 51.5 and half over; the median of compared French towns is 44. 30% are 65 or older (France median 22%), 3.3% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower growth than 99% of compared French towns: Blaisy changed by −17% since 2012
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, −4% to 2017 and −13% after, the town’s change compares with +5% for the median compared French town and −9% in Haute-Marne.
5% of residents are 15 to 24, below 99% 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
■ Blaisy 51.5. The median compared French town: 44.
Compared with 22% in the typical compared French town, 30% of residents are 65 or over here. As a yardstick, 11% of residents are 15 to 24 in the typical compared French town. The median age in Blaisy is 51.5, higher than in 88% of compared French towns.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Haute-Marne 52.0%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Blaisy ranks above 99% of compared French towns on single-parent households: 33%
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
Each household has 2.1 people on average. The share of single-parent households in the typical compared French town is 10%.
97% of homes are houses
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
Flats are rarer here than in 99% of compared French towns.
A larger share of households headed by a retired person than 55% of compared French towns: 33%
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 are rarer here than in 99% of compared French towns. The comparison figure for households headed by a retired person is 32% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 3.3%, a lower share than 79% 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.
1.7% of residents are foreign nationals (typical compared French town: 4.3%). Immigrants: 6.5% in the typical compared French town, for comparison.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
34% of residents 15 and over are married, fewer than in 92% 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
Single residents account for 26%. In the median compared French town 43% are married and 6.1% in a PACS; here it is 34% and 11%, and 5.7% are widowed.
Blaisy sits below 67% of compared French towns for adults with no qualification (16%)
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
The figure for graduates of higher education is 28% in Blaisy and 30% in the typical compared French town. In the typical compared French town, adults with no qualification come to 19%.
41 French towns of 65 to 2,582 people: this is the 10th 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).
Blaisy is older 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 |
|---|---|---|---|---|
| Blaisy | 51.5 | 30% | 4.5% | 3.3% |
| Chaumont 20,827 · 8 mi | 45.6 | 25% | 2.9% | 7.5% |
| Bar-sur-Aube 4,665 · 14.1 mi | 50.8 | 31% | 4.7% | 15% |
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 Blaisy
What is the population of Blaisy?
65 at INSEE’s 2023 census, 17% fewer than in 2012 (78).
How old are Blaisy’s residents?
The median age is 51.5, older than 88% of compared French towns. 13% are under 18 and 30% 65 or older.
How many second homes are there in Blaisy?
2, with occasional dwellings: 4.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Blaisy?
INSEE counts 2 immigrants (born abroad, not French at birth), 3.3% of residents, and 1 foreign nationals (1.7%). 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.