Half of Château-sur-Allier is over 59.4, older than 98% of compared French towns
12% of households rent social housing (HLM) in the typical compared French town, against 3.4% in Château-sur-Allier. The 2023 Census counted 160 residents in 87 households. Put another way, about one in nine: just over one in ten households are couples with children. Empty homes are more common here than in 92% 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 Château-sur-Allier
One home in four is a second home
The census counted 41 second homes and occasional dwellings in Château-sur-Allier, 28% of its 150 homes: higher than in 95% 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 ↓
An older town
Half of Château-sur-Allier’s residents are under 59.4 and half over; the median of compared French towns is 44. 34% are 65 or older (France median 22%), 8% 80 or older. Ages ↓
Fewer residents than in 2012
Château-sur-Allier had 178 residents at the 2012 census and 160 in 2023, down 10%: slower growth than in 97% of compared French towns. Population ↓
Many people living alone
47% of Château-sur-Allier’s households are one person: higher than in 89% of compared French towns; 29% of residents 65 and over live alone. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
28% of homes in Château-sur-Allier are second homes
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
Households that moved in under two years ago: 10%. Those in their home 30 years or more: 36%. Against that, 2.1% of homes are second homes in the typical compared French town. 2% of homes are flats, fewer than in 99% of compared French towns. In Château-sur-Allier, 6.7% of households have no car, beside 11% in the typical compared French town.
Château-sur-Allier’s population moved −10% on 2012, less than in 97% 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, +1% to 2017 and −11% after, the town’s change compares with +5% for the median compared French town and −1% in Allier.
Residents aged 15 to 24 make up 6.1% in Château-sur-Allier, less than in 99% 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
■ Château-sur-Allier 59.4. The median compared French town: 44.
Residents aged 65 and over: 34% here and 22% in the typical compared French town. Against that, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 87 men for every 100 women. Median share of women: Allier 52.6%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Château-sur-Allier sits below 98% of compared French towns for single-parent households (5.3%)
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
Just over a third of households are one person living alone in the typical compared French town, against 47% in Château-sur-Allier. On average, one in ten households are single parents in the typical compared French town. A household here holds 1.8 people on average.
The median resident lives on €22,980 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 €22,980 a year per consumption unit, the median standard of living here is lower than in 82% of compared French towns.
Households headed by a retired person: 47%, a higher share than 95% of compared French towns
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
Against a figure of 14% in the typical compared French town, the share of households headed by a manual worker in Château-sur-Allier comes in at 16%. Across Château-sur-Allier, 5.3% of households are headed by a manager or professional. On average, nearly a third 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).
4.9% of residents are foreign nationals, more than in 56% of compared French towns
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 make up a share lower than in 53% of compared French towns; the median compared commune in Allier has 4.6%. Measured more widely, 4.3% of residents are foreign nationals in the typical compared French town. Here, 6.1% of residents are immigrants.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A smaller share of single residents than 85% of compared French towns: 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
48% of residents 15 and over are married, against 43% in the typical compared French town. Single residents make up 25% in the typical compared French town.
16% of adults out of school hold a higher-education 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
Compared with 19% in the typical compared French town, 24% of adults out of school have no qualification here. On average, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (160 to 2,582 people), the 4th 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Every neighbor is younger than Château-sur-Allier
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Château-sur-Allier | 59.4 | 34% | 28% | 6.1% |
| Sancoins 2,951 · 6.1 mi | 57.4 | 36% | 5.9% | 2% |
| La Guerche-sur-l'Aubois 3,151 · 12.7 mi | 51.2 | 32% | 6.8% | 1.9% |
| Marzy 3,623 · 15.3 mi | 49.1 | 25% | 1.5% | 4.5% |
| Imphy 3,182 · 15.8 mi | 51.3 | 31% | 2.6% | 6.5% |
| Nevers 33,085 · 16.4 mi | 45.5 | 26% | 3.5% | 14% |
| Fourchambault 3,992 · 17.4 mi | 49.3 | 27% | 1.2% | 6.3% |
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 Château-sur-Allier
What is the population of Château-sur-Allier?
160 at INSEE’s 2023 census, 10% fewer than in 2012 (178).
How old are Château-sur-Allier’s residents?
The median age is 59.4, older than 98% of compared French towns. 12% are under 18 and 34% 65 or older.
How many second homes are there in Château-sur-Allier?
41, with occasional dwellings: 28% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Château-sur-Allier?
INSEE counts 10 immigrants (born abroad, not French at birth), 6.1% of residents, and 8 foreign nationals (4.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Château-sur-Allier?
€22,980 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 9, 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.