More second homes than 99% of compared French towns: 68%
Households headed by a retired person make up 71%, against 32% in the typical compared French town. 4.5% of homes are flats, a lower share than in 96% of compared French towns. At the 2023 Census, 51 people lived in Caussou, in 30 households. Census figures put residents aged 15 to 24 at 3.6% here.
Throughout this page, the Ariège 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 Caussou
One home in two is a second home
The census counted 70 second homes and occasional dwellings in Caussou, 68% of its 100 homes: higher than in 99% 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 ↓
Fewer residents than in 2012
Caussou had 62 residents at the 2012 census and 51 in 2023, down 18%: slower growth than in 99% of compared French towns. Population ↓
Many people living alone
57% of Caussou’s households are one person: higher than in 99% of compared French towns; 44% of residents 65 and over live alone. Households ↓
An older town
Half of Caussou’s residents are under 53.5 and half over; the median of compared French towns is 44. 29% are 65 or older (France median 22%), 13% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A lower share of empty homes than 96% of compared French towns, at 3%
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
9.4% of households have no car; in the typical compared French town the figure is 11%. What’s more, households in social housing are rarer here than in 99% of compared French towns. Across the comparison, 6.7% of homes stand empty in the typical compared French town.
A change of −18% since 2012 leaves Caussou behind 99% 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 median Ariège town changed +2% and the median compared French town +5%; here the first five years brought −13% and the next six −6%.
Older than 91% of compared French towns: half of Caussou is over 53.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Caussou 53.5. The median compared French town: 44.
In the typical compared French town, the share of residents aged 65 and over is 22%; Caussou has 29%.
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Median share of women: Ariège 52.2%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Above 99% of compared French towns: 57% of households are one person living alone
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 Ariège median and the France median
Living alone · share
In the typical compared French town, 25% of households are couples with children; in Caussou, 29%. On average, 1.7 people share a household. The wider picture: just over a third of households are one person living alone in the typical compared French town.
The largest group of households: retired (71%)
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 are rarer here than in 99% of compared French towns.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 3.6% in Caussou, less than in 76% 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.
Foreign nationals are rarer here than in 99% of compared French towns. The share of immigrants in the typical compared French town is 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
38% of residents 15 and over are married, below 78% 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
Here 28% of residents 15 and over are single, where the figure in the typical compared French town is 25%. Married residents: 43% in the typical compared French town, for comparison.
Caussou ranks below 85% of compared French towns on graduates of higher education: 20%
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
Adults with no qualification are more common here than in 56% of compared French towns. Measured more widely, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Ranked by age, 7th oldest of 41 French towns this size
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.
Nearby, 1 of 3 towns have older populations than Caussou
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Caussou | 53.5 | 29% | 68% | 3.6% |
| Lavelanet 5,987 · 11.5 mi | 54.4 | 33% | 12% | 14% |
| Tarascon-sur-Ariège 3,085 · 11.6 mi | 51.4 | 32% | 8% | 18% |
| Foix 9,934 · 16.7 mi | 46.8 | 27% | 7.6% | 15% |
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 Caussou
What is the population of Caussou?
51 at INSEE’s 2023 census, 18% fewer than in 2012 (62).
How old are Caussou’s residents?
The median age is 53.5, older than 91% of compared French towns. 18% are under 18 and 29% 65 or older.
How many second homes are there in Caussou?
70, with occasional dwellings: 68% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Caussou?
INSEE counts 2 immigrants (born abroad, not French at birth), 3.6% of residents, and 0 foreign nationals (0%). 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 October 30, 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.