More households headed by a manual worker than 99% of compared French towns: 32%
The share of residents aged 65 and over is 15%, against 22% in the typical compared French town. At 29%, the share of one-person households is lower than in 81% of compared French towns. Izernore counted 2,299 residents and 980 households at the 2023 Census. Empty homes come to 10% here, about one in ten.
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.
From 2012 to 2023, 72% of compared French towns grew faster than Izernore: ±0%
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
Against +5% for the median compared French town and +13% for the median Ain town, the change came in two steps: −3% from 2012 to 2017, then +2% to 2023.
Half of Izernore is under 41.7, younger than 68% 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
■ Izernore 41.7. The median compared French town: 44.
Across Izernore, just over one in ten residents are 15 to 24.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Ain 51.0%, France 51.8%.
Couples with children make up 31% in Izernore, more than in 80% 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 Ain median and the France median
Living alone · share
In the typical compared French town, one in ten households are single parents; in Izernore, 13%. Couples with children make up 25% in the typical compared French town. Households here average 2.3 people each.
5.8% of households have no car, below 82% 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
Car-free households: one in 17, where the median compared French town has 11%. Roughly two in ten: just over a fifth of households rent social housing (HLM). At 28%, the share of flats is lower than in 54% of compared French towns.
Standard of living at the median: €26,530 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.
At €26,530 a year per consumption unit, the median standard of living here is higher than in 56% of compared French towns. Below the poverty threshold: 10.0% of the population.
Izernore sits below 84% of compared French towns for households headed by a retired person (25%)
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
Compared with other places, households headed by a manager or professional are scarce here: 8.8%, fewer than in 54% of compared French towns. For comparison, 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).
More immigrants than 69% of compared French towns: 9.7%
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.
In the typical compared French town, the share of foreign nationals is 4.3%; Izernore has 6%. Immigrants make up 6.5% 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.
In Izernore, 24% of residents 15 and over are single, fewer than in 61% 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
For Izernore, the census puts married residents at 43%. To put it in context, 25% of residents 15 and over are single in the typical compared French town.
27% of adults out of school hold a higher-education qualification, below 60% 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
19% of adults out of school have no qualification. Graduates of higher education make up 30% in the typical compared French town.
Of 41 French towns its size (2,299 to 2,582 people), the 7th 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).
Izernore sits below 4 of its 6 closest neighbors on median age
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 Izernore
What is the population of Izernore?
2,299 at INSEE’s 2023 census, about the same as in 2012 (2,309).
How old are Izernore’s residents?
The median age is 41.7, younger than 68% of compared French towns. 24% are under 18 and 15% 65 or older.
How many second homes are there in Izernore?
19, with occasional dwellings: 1.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Izernore?
INSEE counts 220 immigrants (born abroad, not French at birth), 9.7% of residents, and 140 foreign nationals (6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Izernore?
€26,530 a year per consumption unit in 2023 (median of compared French towns €25,970); 10.0% of residents live below the poverty line. 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.