Blannay sits below 99% of compared French towns for couples with children (8.3%)
1.7% of households rent social housing (HLM), against 12% in the typical compared French town. Households without a car: 3.4% of the total. Lower than in 98% of compared French towns: 6.4% of residents are 15 to 24. At the 2023 Census, 105 people lived in Blannay, in 56 households.
Throughout this page, the Yonne 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 Blannay
One home in five is a second home
The census counted 17 second homes and occasional dwellings in Blannay, 19% of its 92 homes: higher than in 93% 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 ↓
Fewer residents than in 2012
Blannay had 127 residents at the 2012 census and 105 in 2023, down 17%: slower growth than in 99% of compared French towns. Population ↓
An older town
Half of Blannay’s residents are under 56 and half over; the median of compared French towns is 44. 27% are 65 or older (France median 22%), 15% 80 or older. Ages ↓
Empty homes
The census found 18 homes empty (20%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A smaller share of flats than 99% of compared French towns: 1%
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
5.1% of households moved in less than two years ago; 25% have been in their home 30 years or more. At 20%, the share of empty homes is higher than in 99% of compared French towns. The share of second homes is 19%, against 2.1% in the typical compared French town.
Blannay changed by −17% from 2012 to 2023, behind 99% 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 first five years brought −10%; the six to 2023, −8%. For comparison, the median compared French town changed +5% and the median Yonne town −4%.
A median age of 56: Blannay is older than 95% 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
■ Blannay 56. The median compared French town: 44.
Against a figure of 22% in the typical compared French town, the share of residents aged 65 and over in Blannay comes in at 27%.
Women and men · all residents
48% women, 52% men
About 108 men for every 100 women. Median share of women: Yonne 52.2%, France 51.8%.
Blannay sits above 99% of compared French towns for single-parent households (25%)
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 Yonne median and the France median
Living alone · share
There are 1.8 people in the average household. The share of single-parent households in the typical compared French town is 10%. Few places have as many one-person households: 50% here, more than in 94% of compared French towns.
A median standard of living of €23,730 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 €23,730 a year: lower than in 75% of compared French towns.
33% of households are headed by a retired person, more than in 55% 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
Households headed by a manager or professional are rarer here than in 99% of compared French towns. Typically, 32% 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).
In Blannay, 5.4% of residents are foreign nationals, more than in 60% 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.
The median compared commune in Yonne has 9.2%; immigrants here make up a share lower than in just over half of compared French towns. Foreign nationals make up 4.3% in the typical compared French town. 6.4% of residents are immigrants, or about one in 16.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Only 31% of residents 15 and over are married in Blannay
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
Where a quarter of residents 15 and over are single in the typical compared French town, Blannay has 20%. The comparison figure for married residents is 43% in the typical compared French town.
A larger share of adults with no qualification than 63% of compared French towns: 22%
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
Put another way, about one in three: 30% of adults out of school hold a higher-education qualification. By way of comparison, 19% of adults out of school have no qualification in the typical compared French town.
The 5th oldest of 41 French towns of 105 to 2,582 people
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 Villejust (37.2), the oldest Prayssac (62.3).
Every neighbor is younger than Blannay
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 Blannay
What is the population of Blannay?
105 at INSEE’s 2023 census, 17% fewer than in 2012 (127).
How old are Blannay’s residents?
The median age is 56, older than 95% of compared French towns. 15% are under 18 and 27% 65 or older.
How many second homes are there in Blannay?
17, with occasional dwellings: 19% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Blannay?
INSEE counts 7 immigrants (born abroad, not French at birth), 6.4% of residents, and 6 foreign nationals (5.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Blannay?
€23,730 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.