2.6% of households have no car, fewer than in 99% of compared French towns
Where 35% of households are one person living alone in the typical compared French town, Birieux has 22%. Households headed by a manager or professional account for 28%. 7.5% of homes are second homes, more than in 84% of compared French towns. Census day 2023: 275 residents and 110 households here.
Throughout this page, the Ain 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 Birieux
A town of families
35% of households are couples with children and 4.9% single parents with children; 20% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A change of +4% since 2012 leaves Birieux behind 54% 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
Over those years, the median Ain town changed +13% and the median compared French town +5%. Between 2012 and 2017 the population moved +7%, then −3% to 2023.
Birieux sits below 92% of compared French towns for residents aged 65 and over (15%)
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Birieux 42.2. The median compared French town: 44.
The median age in Birieux is 42.2, lower than in 64% of compared French towns. As a yardstick, 22% of residents are 65 or over in the typical compared French town. On the census count, 11% of residents are 15 to 24.
Women and men · all residents
48% women, 52% men
About 106 men for every 100 women. Median share of women: Ain 51.0%, France 51.8%.
35% of households are couples with children, a share 93% of compared French towns don’t reach
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 Ain median and the France median
Living alone · share
A household here holds 2.6 people on average. On single-parent households, Birieux sits lower than 99% of compared French towns: 4.9%. Across the comparison, a quarter of households are couples with children in the typical compared French town.
Only 8.3% of homes are flats in Birieux
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
Empty homes are about as common here as in the typical compared French town: 5.8%. Households that moved in under two years ago: 10%. Those in their home 30 years or more: 15%.
Half above, half below €31,400 a year in standard of living
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.
Living standards centre on €31,400 a year per consumption unit: higher than in 89% of compared French towns.
Only 5.1% of households are headed by a manual worker in Birieux
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
With households headed by a retired person at 23%, Birieux is behind 90% of compared French towns on that count. Against that, 14% of households are headed by a manual worker 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 89% 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.
By its share of foreign nationals (1.1%), Birieux is below 92% of compared French towns. The wider picture: 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.
Birieux ranks below 88% of compared French towns on single residents: 21%
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 Birieux, 45% of residents 15 and over are married, beside 43% in the typical compared French town. The comparison figure for single residents is 25% in the typical compared French town.
In Birieux, 10% of adults out of school have no qualification, fewer than in 95% 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
Against a figure of 30% in the typical compared French town, the share of graduates of higher education in Birieux comes in at 41%. As a reference point, 19% of adults out of school have no qualification in the typical compared French town.
Ranked by age, 9th youngest of 41 French towns this size
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.
2 of 6 neighbors are older than Birieux
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Birieux | 42.2 | 15% | 7.5% | 2.2% |
| Villars-les-Dombes 5,163 · 3.2 mi | 42.5 | 24% | 2.8% | 7% |
| Saint-André-de-Corcy 3,370 · 4.5 mi | 45.3 | 25% | 1.2% | 4.2% |
| Montluel 6,895 · 6.7 mi | 40.9 | 19% | 1.2% | 14% |
| Chalamont 2,533 · 6.9 mi | 41.2 | 20% | 2.4% | 3.6% |
| Dagneux 4,778 · 7.3 mi | 39.8 | 16% | 0.8% | 8.5% |
| La Boisse 3,449 · 7.8 mi | 40 | 16% | 1.2% | 5.9% |
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 Birieux
What is the population of Birieux?
275 at INSEE’s 2023 census, 4% more than in 2012 (265).
How old are Birieux’s residents?
The median age is 42.2, younger than 64% of compared French towns. 24% are under 18 and 15% 65 or older.
How many second homes are there in Birieux?
9, with occasional dwellings: 7.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Birieux?
INSEE counts 6 immigrants (born abroad, not French at birth), 2.2% of residents, and 3 foreign nationals (1.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Birieux?
€31,400 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.