More couples with children than 99% of compared French towns: 40%
In the typical compared French town, the share of residents aged 15 to 24 is 11%; Cazaux has 6.3%. The 2023 Census counted 48 residents in 22 households. Households without a car: 4.5% of the total. Few places have as many households headed by a manual worker: 20% here, more than in 83% of compared French towns.
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 Cazaux
One home in nine is a second home
The census counted 3 second homes and occasional dwellings in Cazaux, 11% of its 27 homes: higher than in 89% 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 ↓
A town of families
40% of households are couples with children and 0% single parents with children; 15% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A lower share of flats than 97% of compared French towns, at 3.7%
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
11% of homes are second homes (typical compared French town: 2.1%). To put it in context, 30% of homes are flats in the typical compared French town. For Cazaux, the census puts empty homes at 7.4%. Households in social housing are rarer here than in 99% of compared French towns.
Cazaux’s population changed by +9% since 2012, more than in 67% 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 first five years brought −11%; the six to 2023, +23%. For comparison, the median compared French town changed +5% and the median Ariège town +2%.
Cazaux: 27% of residents are 65 or over, above 77% 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
■ Cazaux 46. The median compared French town: 44.
The median age in Cazaux is 46, higher than in 63% of compared French towns. Set beside that, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
46% women, 54% men
About 118 men for every 100 women. Median share of women: Ariège 52.2%, France 51.8%.
One-person households: 40%, a higher share than 69% 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 Ariège median and the France median
Living alone · share
Single-parent households are rarer here than in 99% of compared French towns. Elsewhere, just over a third of households are one person living alone in the typical compared French town. The typical household size is 2.2 people.
Cazaux ranks above 83% of compared French towns on households headed by a retired person: 40%
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. On average, 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).
Only 2.1% of residents are immigrants in Cazaux
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.
The median compared commune in Ariège has 9.1%; immigrants here make up a share lower than in 91% of compared French towns. Typically, 6.5% of residents are immigrants in the typical compared French town. Put another way, about one in 48: 2.1% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents make up 29% in Cazaux, less than in 98% 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
The share of single residents tops 85% of compared French towns: 32%. The comparison figure for married residents is 43% in the typical compared French town.
21% of adults out of school have no qualification, more than in 58% 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
Graduates of higher education make up 28%, against 30% in the typical compared French town. In the typical compared French town, nearly a fifth of adults out of school have no qualification.
Ranked by age, 19th 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.
Older than Cazaux: 3 of the 6 towns nearby
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cazaux | 46 | 27% | 11% | 2.1% |
| Varilhes 3,487 · 5.7 mi | 46.7 | 26% | 3.7% | 4.1% |
| Saint-Jean-du-Falga 2,851 · 6 mi | 50 | 30% | 1.8% | 7.6% |
| Pamiers 16,473 · 6.9 mi | 39.8 | 21% | 2.7% | 13% |
| Foix 9,934 · 7.6 mi | 46.8 | 27% | 7.6% | 15% |
| La Tour-du-Crieu 3,230 · 7.9 mi | 44.8 | 23% | 1.3% | 6.3% |
| Saverdun 4,808 · 13.1 mi | 44 | 21% | 2.4% | 7.3% |
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 Cazaux
What is the population of Cazaux?
48 at INSEE’s 2023 census, 9% more than in 2012 (44).
How old are Cazaux’s residents?
The median age is 46, older than 63% of compared French towns. 19% are under 18 and 27% 65 or older.
How many second homes are there in Cazaux?
3, with occasional dwellings: 11% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cazaux?
INSEE counts 1 immigrants (born abroad, not French at birth), 2.1% of residents, and 1 foreign nationals (2.1%). 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 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.