Cosne-d'Allier is older than 96% of compared French towns: a median age of 57
Against a figure of 9.4% in the typical compared French town, the share of households headed by a manager or professional in Cosne-d'Allier comes in at 2.4%. The town had 2,006 residents in 1,030 households at the 2023 census. Single-parent households account for 5.7%. At 9.1%, the share of households in social housing is lower than in 65% 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 Cosne-d'Allier
An older town
Half of Cosne-d'Allier’s residents are under 57 and half over; the median of compared French towns is 44. 38% are 65 or older (France median 22%), 16% 80 or older. Ages ↓
Fewer residents than in 2012
Cosne-d'Allier had 2,194 residents at the 2012 census and 2,006 in 2023, down 9%: slower growth than in 96% of compared French towns. Population ↓
Empty homes
The census found 240 homes empty (18%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −9% since 2012, behind 96% 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
The years 2012 to 2017 brought −7%; 2017 to 2023, −2%. Over the whole period the median compared French town changed +5%, and the median Allier town −1%.
Cosne-d'Allier ranks above 97% of compared French towns on residents aged 65 and over: 38%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cosne-d'Allier 57. The median compared French town: 44.
By its share of residents aged 15 to 24 (6.7%), Cosne-d'Allier is below 98% of compared French towns. Measured more widely, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 89 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.
A lower share of couples with children than 88% of compared French towns, at 16%
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
One-person households: 43% here and 35% in the typical compared French town. The benchmark for couples with children in the typical compared French town: 25%. A household here holds 1.9 people on average.
Cosne-d'Allier: 18% of homes stand empty, above 98% 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
Where 2.1% of homes are second homes in the typical compared French town, Cosne-d'Allier has 4.1%. At the same time, on flats, Cosne-d'Allier sits lower than 72% of compared French towns: 18%. Against that, 6.7% of homes stand empty in the typical compared French town. Put another way, about one in eight: 13% of households have no car.
A median standard of living of €24,080 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.
The median standard of living in Cosne-d'Allier is €24,080 a year per consumption unit: lower than in 70% of compared French towns.
A higher share of households headed by a retired person than 98% of compared French towns, at 53%
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
Put another way, about one in seven: 15% of households are headed by a manual worker. 2.4% of Cosne-d'Allier’s households are headed by a manager or professional, against 9.4% in the median compared French town; 53% by a retired person (32%).
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
3.6% of residents are immigrants, below 77% 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.
2.6% of residents are foreign nationals, against 4.3% in the typical compared French town. 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.
A lower share of single residents than 82% of compared French towns, at 22%
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: 43% of the total. By way of comparison, a quarter of residents 15 and over are single in the typical compared French town.
15% of adults out of school hold a higher-education qualification, fewer than in 98% 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
In the typical compared French town, the share of adults with no qualification is 19%; Cosne-d'Allier has 34%. The share of graduates of higher education in the typical compared French town is 30%.
41 French towns of 2,006 to 2,582 people: this is the 5th 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.
Cosne-d'Allier 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 |
|---|---|---|---|---|
| Cosne-d'Allier | 57 | 38% | 4.1% | 3.6% |
| Désertines 4,259 · 13.2 mi | 53.2 | 32% | 1.5% | 5% |
| Commentry 6,017 · 13.9 mi | 53.8 | 33% | 2.4% | 4.6% |
| Montluçon 33,147 · 14.8 mi | 46.9 | 28% | 3.1% | 11% |
| Domérat 8,622 · 16 mi | 53.5 | 33% | 1.6% | 4.4% |
| Prémilhat 2,540 · 17.1 mi | 53.6 | 31% | 2.3% | 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 Cosne-d'Allier
What is the population of Cosne-d'Allier?
2,006 at INSEE’s 2023 census, 9% fewer than in 2012 (2,194).
How old are Cosne-d'Allier’s residents?
The median age is 57, older than 96% of compared French towns. 14% are under 18 and 38% 65 or older.
How many second homes are there in Cosne-d'Allier?
54, with occasional dwellings: 4.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cosne-d'Allier?
INSEE counts 71 immigrants (born abroad, not French at birth), 3.6% of residents, and 53 foreign nationals (2.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cosne-d'Allier?
€24,080 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.