Blaisy-Bas sits below 99% of compared French towns for households in social housing (0.3%)
Set against 9.4% in the typical compared French town, 16% of households are headed by a manager or professional in Blaisy-Bas. There were 310 households here at the 2023 Census, home to 677 residents. In Blaisy-Bas, just over one in ten homes are flats. Second homes are more common here than in just over four fifths of compared French towns.
Throughout this page, the Côte-d'Or 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-Bas
Fewer residents than in 2012
Blaisy-Bas had 712 residents at the 2012 census and 677 in 2023, down 5%: slower growth than in 88% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Blaisy-Bas changed by −5% from 2012 to 2023, behind 88% 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 change was −6% from 2012 to 2017 and +1% from 2017 to 2023.
Blaisy-Bas ranks below 62% of compared French towns on residents aged 65 and over: 20%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Blaisy-Bas 44. The median compared French town: 44.
Across Blaisy-Bas, 10% of residents are 15 to 24. The median age here is 44, lower than in 51% of compared French towns.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Côte-d'Or 52.8%, France 51.8%.
Above 78% of compared French towns: 31% of households are couples with children
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 Côte-d'Or median and the France median
Living alone · share
By its share of single-parent households (8.1%), Blaisy-Bas is below 79% of compared French towns. The average household has 2.2 people. At 35%, the share of one-person households is higher than in 52% of compared French towns. Set beside that, a quarter of households are couples with children in the typical compared French town.
Blaisy-Bas: 8.1% of homes stand empty, above 65% 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
Recent arrivals (under two years) make up 8.2% of households; long-stayers (30 years or more) 20%. Few places have as many households without a car: 11% here, more than in 54% of compared French towns. In the typical compared French town, 6.7% of homes stand empty.
Median standard of living: €26,800 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.
Half of Blaisy-Bas’ residents live in households with a standard of living below €26,800 a year per consumption unit, and half above: higher than in 59% of compared French towns.
A larger share of households headed by a retired person than 66% of compared French towns: 35%
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 make up about one in seven here (15%). To put it in context, 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).
Fewer immigrants than 76% of compared French towns: 3.7%
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.
By its share of foreign nationals (3%), Blaisy-Bas is below 66% of compared French towns. The share of immigrants in the typical compared French town is 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents: 24%, a lower share than 59% 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
The share of married residents stands at 43%. To put it in context, 25% of residents 15 and over are single in the typical compared French town.
36% of adults out of school hold a higher-education qualification, a share 68% of compared French towns don’t reach
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 share of adults with no qualification is 16%, against 19% in the typical compared French town. The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 677 to 2,582 people: this is the 16th 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Median age: 4 of the 6 towns around Blaisy-Bas are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Blaisy-Bas | 44 | 20% | 6.7% | 3.7% |
| Talant 11,896 · 12.5 mi | 45.7 | 26% | 1.8% | 12% |
| Fontaine-lès-Dijon 9,252 · 13.7 mi | 52.5 | 31% | 1.9% | 5.7% |
| Chenôve 14,244 · 13.7 mi | 41 | 20% | 1.2% | 24% |
| Marsannay-la-Côte 5,433 · 13.9 mi | 45 | 24% | 1.1% | 7.7% |
| Dijon 161,830 · 14.4 mi | 34.5 | 18% | 4.1% | 13% |
| Gevrey-Chambertin 2,917 · 15.3 mi | 46.2 | 23% | 2.1% | 4.4% |
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-Bas
What is the population of Blaisy-Bas?
677 at INSEE’s 2023 census, 5% fewer than in 2012 (712).
How old are Blaisy-Bas’ residents?
The median age is 44, younger than 51% of compared French towns. 24% are under 18 and 20% 65 or older.
How many second homes are there in Blaisy-Bas?
24, with occasional dwellings: 6.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Blaisy-Bas?
INSEE counts 25 immigrants (born abroad, not French at birth), 3.7% of residents, and 20 foreign nationals (3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Blaisy-Bas?
€26,800 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.