Flats make up 3.7% in Castelnau-d'Aude, less than in 98% of compared French towns
Households headed by a manager or professional are rarer here than in 99% of compared French towns. Castelnau-d'Aude’s 230 households held 497 residents at the 2023 Census. In Castelnau-d'Aude, 6.6% of households have no car. Single-parent households: 8.6% here and 10% in the typical compared French town.
Throughout this page, the Aude 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 Castelnau-d'Aude
One home in eight is a second home
The census counted 43 second homes and occasional dwellings in Castelnau-d'Aude, 13% of its 330 homes: higher than in 90% 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 ↓
Empty homes
The census found 55 homes empty (17%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
In Castelnau-d'Aude, 17% of homes stand empty, more than in 97% 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
Households in social housing are rarer here than in 99% of compared French towns. In the typical compared French town, 6.7% of homes stand empty. Across Castelnau-d'Aude, 13% of homes are second homes.
A +4% change since 2012: slower than 53% 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 +4% for the median Aude town, the change came in two steps: +3% from 2012 to 2017, then +1% to 2023.
A median age of 48.1: Castelnau-d'Aude is older than 75% 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
■ Castelnau-d'Aude 48.1. The median compared French town: 44.
9.4% of residents are 15 to 24 (typical compared French town: 11%). The census found that 22% of residents are 65 or over in Castelnau-d'Aude.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Aude 52.3%, France 51.8%.
A higher share of couples with children than 52% of compared French towns, at 26%
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 Aude median and the France median
Living alone · share
Households here average 2.1 people each. Against that, a quarter of households are couples with children in the typical compared French town. One-person households: 35%, near enough the figure in the typical compared French town.
At the median, €22,980 a year to live on
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.
Living standards centre on €22,980 a year per consumption unit: lower than in 82% of compared French towns.
More households headed by a retired person than 94% of compared French towns: 46%
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 manual worker: 17%, above 70% of compared French towns. In the typical compared French town, households headed by a retired person come to 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
6.5% of residents are foreign nationals, a share 67% of compared French towns don’t reach
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 share of immigrants is 8.5%, against 6.5% in the typical compared French town. For comparison, 4.3% of residents are foreign nationals in the typical compared French town. That is higher than in 63% of compared French towns; the median compared commune in Aude has 6%.
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 46% in Castelnau-d'Aude, more than in 69% 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
Single residents: 24% of the total. To put it in context, 43% of residents 15 and over are married in the typical compared French town.
Castelnau-d'Aude ranks below 73% of compared French towns on graduates of higher education: 23%
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
Set against 19% in the typical compared French town, 16% of adults out of school have no qualification in Castelnau-d'Aude. The share of graduates of higher education in the typical compared French town is 30%.
Of 41 French towns its size (497 to 2,582 people), the 15th 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Castelnau-d'Aude is younger than 2 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Castelnau-d'Aude | 48.1 | 22% | 13% | 8.5% |
| Lézignan-Corbières 10,343 · 4.9 mi | 48.3 | 30% | 3% | 7.8% |
| Trèbes 5,361 · 11.5 mi | 50.2 | 30% | 3.4% | 12% |
| Sallèles-d'Aude 3,179 · 13.9 mi | 45.8 | 23% | 9.3% | 6.1% |
| Conques-sur-Orbiel 2,523 · 14 mi | 46.8 | 27% | 3.9% | 6.2% |
| Palaja 2,722 · 14.9 mi | 46.2 | 22% | 2.5% | 5.8% |
| Ouveillan 2,713 · 15.4 mi | 44.5 | 25% | 7.3% | 5.8% |
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 Castelnau-d'Aude
What is the population of Castelnau-d'Aude?
497 at INSEE’s 2023 census, 4% more than in 2012 (478).
How old are Castelnau-d'Aude’s residents?
The median age is 48.1, older than 75% of compared French towns. 20% are under 18 and 22% 65 or older.
How many second homes are there in Castelnau-d'Aude?
43, with occasional dwellings: 13% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Castelnau-d'Aude?
INSEE counts 42 immigrants (born abroad, not French at birth), 8.5% of residents, and 32 foreign nationals (6.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Castelnau-d'Aude?
€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.