A town of second homes: 34% of its homes
4.2% of households rent social housing (HLM) (typical compared French town: 12%). In Bolozon, 4.9% of residents are 15 to 24. Few places have so few flats: 1.1% here, fewer than in 99% of compared French towns. This Ain town had 103 residents in 48 households at the 2023 Census.
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 Bolozon
One home in three is a second home
The census counted 31 second homes and occasional dwellings in Bolozon, 34% of its 90 homes: higher than in 95% of compared French towns. 97% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Empty homes
The census found 11 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
More empty homes than 89% of compared French towns: 12%
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
Of all households, 13% moved in during the last two years and 17% have stayed three decades or more. Compared with other places, households without a car are scarce here: 8.3%, fewer than in 64% of compared French towns. In the typical compared French town, the share of empty homes is 6.7%.
Bolozon’s population changed by +13% since 2012, more than in 78% 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
Here the change came as −2% to 2017, then +16% to 2023. Medians for comparison: +5% across compared French towns, +13% in Ain.
Older than 81% of compared French towns: half of Bolozon is over 49.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Bolozon 49.5. The median compared French town: 44.
The share of residents aged 65 and over is 26%, against 22% in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Ain 51.0%, France 51.8%.
Fewer one-person households than 98% of compared French towns: 22%
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
On average, 2.2 people share a household. Single-parent households are rarer here than in 99% of compared French towns. Set beside that, just over a third of households are one person living alone in the typical compared French town. In the typical compared French town, 25% of households are couples with children; in Bolozon, 22%.
Fewer households headed by a retired person than 91% of compared French towns: 22%
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: 11%, above three fifths of compared French towns. The benchmark for households headed by a retired person in the typical compared French town: 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Fewer immigrants than 65% of compared French towns: 4.9%
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.
Put another way, about one in 20: 4.9% of residents are foreign nationals. 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: 13%, a lower share than 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 make up 45%, against 43% in the typical compared French town. On average, 25% of residents 15 and over are single in the typical compared French town.
13% of adults out of school have no qualification, fewer than in 82% 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
Lower than in 52% of compared French towns: 29% of adults out of school hold a higher-education qualification. The share of adults with no qualification in the typical compared French town is 19%.
Among 41 French towns of 103 to 2,582 people, the 14th 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).
Bolozon 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 |
|---|---|---|---|---|
| Bolozon | 49.5 | 26% | 34% | 4.9% |
| Montréal-la-Cluse 3,568 · 5.6 mi | 42.5 | 19% | 2.2% | 23% |
| Ceyzériat 3,328 · 7 mi | 45.1 | 23% | 2.7% | 4.2% |
| Nantua 3,416 · 7.7 mi | 42.3 | 23% | 3.6% | 27% |
| Bellignat 3,525 · 8.5 mi | 40.8 | 21% | 1.7% | 26% |
| Oyonnax 22,480 · 9.5 mi | 41.1 | 19% | 2.1% | 33% |
| Saint-Étienne-du-Bois 2,584 · 9.9 mi | 45.6 | 24% | 1.7% | 4.5% |
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 Bolozon
What is the population of Bolozon?
103 at INSEE’s 2023 census, 13% more than in 2012 (91).
How old are Bolozon’s residents?
The median age is 49.5, older than 81% of compared French towns. 19% are under 18 and 26% 65 or older.
How many second homes are there in Bolozon?
31, with occasional dwellings: 34% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Bolozon?
INSEE counts 5 immigrants (born abroad, not French at birth), 4.9% of residents, and 5 foreign nationals (4.9%). 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 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.