Biozat: 37% of households are couples with children, above 95% of compared French towns
The share of households without a car trails 99% of compared French towns: 2.8%. Biozat had 933 residents in 390 households at the 2023 Census. Locally, 0.8% of households rent social housing (HLM). Residents aged 15 to 24 are rarer here than in 97% of compared French towns.
Throughout this page, the Allier 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 Biozat
A town of families
37% of households are couples with children and 3.8% single parents with children; 21% of residents are under 15. Households ↓
Growing fast
Biozat had 758 residents at the 2012 census and 933 in 2023, up 23%: faster growth than in 93% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Biozat’s population changed by +23% since 2012, more than in 93% 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
In two steps, +11% to 2017 and +10% after, the town’s change compares with +5% for the median compared French town and −1% in Allier.
Younger than 71% of compared French towns: half of Biozat is under 41.2
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Biozat 41.2. The median compared French town: 44.
The figure for residents aged 65 and over is 18% in Biozat and 22% in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Allier 52.6%, France 51.8%.
3.8% of households are single parents, fewer than in 99% 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 Allier 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 Biozat comes in at 26%. Set beside that, one in ten households are single parents in the typical compared French town. Each household has 2.4 people on average.
Biozat sits below 99% of compared French towns for flats (0.7%)
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
In Biozat, 8.2% of homes stand empty, beside 6.7% in the typical compared French town. Compared with other places, second homes are common here: 2.7%, more than in 59% of compared French towns. The benchmark for flats in the typical compared French town: 30%.
Per consumption unit, the median standard of living is €25,380 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.
The median standard of living in Biozat is €25,380 a year per consumption unit: lower than in 56% of compared French towns.
Fewer households headed by a manager or professional than 72% of compared French towns: 6.5%
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
Set against 32% in the typical compared French town, 29% of households are headed by a retired person in Biozat. Compared with other places, households headed by a manual worker are common here: 17%, more than in two thirds of compared French towns. For comparison, 9.4% of households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A lower share of immigrants than 90% of compared French towns, at 2.2%
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% in Biozat. As a yardstick, 6.5% of residents are immigrants 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.
Single residents make up 17% in Biozat, less than in 99% 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
Married residents: 47% here and 43% in the typical compared French town. For comparison, 25% of residents 15 and over are single in the typical compared French town.
A lower share of adults with no qualification than 81% of compared French towns, at 14%
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
Against a figure of 30% in the typical compared French town, the share of graduates of higher education in Biozat comes in at 28%. On average, 19% of adults out of school have no qualification in the typical compared French town.
Among 41 French towns of 933 to 2,582 people, the 6th 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Every neighbor is older than Biozat
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Biozat | 41.2 | 18% | 2.7% | 2.2% |
| Gannat 5,610 · 4.2 mi | 48.6 | 28% | 2.9% | 3.9% |
| Aigueperse 2,665 · 5.1 mi | 49.3 | 29% | 1.4% | 5.6% |
| Bellerive-sur-Allier 8,943 · 6.4 mi | 53 | 34% | 4.9% | 7.7% |
| Vichy 25,115 · 7.9 mi | 53.1 | 37% | 8.5% | 11% |
| Abrest 2,915 · 8.2 mi | 46.6 | 24% | 1.7% | 4.5% |
| Saint-Yorre 2,641 · 9 mi | 49 | 27% | 1.2% | 3.4% |
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 Biozat
What is the population of Biozat?
933 at INSEE’s 2023 census, 23% more than in 2012 (758).
How old are Biozat’s residents?
The median age is 41.2, younger than 71% of compared French towns. 26% are under 18 and 18% 65 or older.
How many second homes are there in Biozat?
12, with occasional dwellings: 2.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Biozat?
INSEE counts 20 immigrants (born abroad, not French at birth), 2.2% of residents, and 9 foreign nationals (1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Biozat?
€25,380 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.