A lower share of flats than 99% of compared French towns, at 1%
Here just over a fifth of households are headed by a retired person, where the figure in the typical compared French town is 32%. For Cleyzieu, the census puts residents aged 15 to 24 at 4.2%. Compared with other places, empty homes are common here: 11%, more than in 83% of compared French towns. Its 71 households held 143 residents 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 Cleyzieu
One home in five is a second home
The census counted 20 second homes and occasional dwellings in Cleyzieu, 20% of its 100 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 ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Cleyzieu ranks above 93% of compared French towns on second homes: 20%
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
Nearly one in ten households have no car, against 11% in the typical compared French town. Elsewhere, 2.1% of homes are second homes in the typical compared French town. Of all households, 5.6% moved in during the last two years and 18% have stayed three decades or more. Households in social housing are rarer here than in 99% of compared French towns.
Cleyzieu’s population moved +3% on 2012, less than in 58% 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
Against +5% for the median compared French town and +13% for the median Ain town, the change came in two steps: −2% from 2012 to 2017, then +5% to 2023.
Cleyzieu is older than 66% of compared French towns: a median age of 46.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cleyzieu 46.5. The median compared French town: 44.
Census figures put residents aged 65 and over at 22% in Cleyzieu.
Women and men · all residents
45% women, 55% men
About 122 men for every 100 women. Median share of women: Ain 51.0%, France 51.8%.
A larger share of one-person households than 79% of compared French towns: 43%
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
Single-parent households are rarer here than in 99% of compared French towns. Just over a fifth of households are couples with children. The share of one-person households in the typical compared French town is 35%.
The median resident lives on €26,050 a year per consumption unit
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 €26,050 a year per consumption unit, the median standard of living here is higher than in 51% of compared French towns.
A higher share of households headed by a manager or professional than 90% of compared French towns, at 21%
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
Few places have as many households headed by a manual worker: 14% here, more than in 53% of compared French towns. To put it in context, 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 smaller share of foreign nationals than 98% of compared French towns: 0.7%
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.
Immigrants: 2.8%, below 84% of compared French towns. In the typical compared French town, the share of foreign nationals is 4.3%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Fewer married residents than 70% of compared French towns: 40%
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
The share of single residents is 23%, against 25% in the typical compared French town. As a yardstick, 43% of residents 15 and over are married in the typical compared French town.
37% of adults out of school hold a higher-education qualification, more than in 72% 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
About one in five: that is how common adults with no qualification are in Cleyzieu (20%). The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 143 to 2,582 people, the 18th 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Cleyzieu and its 6 nearest towns: 1 of them are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cleyzieu | 46.5 | 22% | 20% | 2.8% |
| Lagnieu 7,411 · 4.3 mi | 43.1 | 23% | 2.1% | 7.3% |
| Ambérieu-en-Bugey 15,934 · 5.3 mi | 37.5 | 18% | 1.4% | 13% |
| Montalieu-Vercieu 3,510 · 6.6 mi | 38.3 | 16% | 4.1% | 5% |
| Ambronay 2,841 · 7.8 mi | 42.1 | 19% | 2.9% | 3.3% |
| Plateau d'Hauteville 4,857 · 9.3 mi | 50.8 | 29% | 11% | 7% |
| Villieu-Loyes-Mollon 3,849 · 9.9 mi | 41.1 | 17% | 3.2% | 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 Cleyzieu
What is the population of Cleyzieu?
143 at INSEE’s 2023 census, 3% more than in 2012 (139).
How old are Cleyzieu’s residents?
The median age is 46.5, older than 66% of compared French towns. 24% are under 18 and 22% 65 or older.
How many second homes are there in Cleyzieu?
20, with occasional dwellings: 20% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cleyzieu?
INSEE counts 4 immigrants (born abroad, not French at birth), 2.8% of residents, and 1 foreign nationals (0.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cleyzieu?
€26,050 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.