A median age of 54.1: Casteil is older than 93% of compared French towns
Households in social housing are rarer here than in 99% of compared French towns. At the 2023 Census, 139 people lived in Casteil, in 62 households. On the census count, 17% of households are couples with children. In the typical compared French town, 14% of households are headed by a manual worker; here, 8.3%.
Throughout this page, the Pyrénées-Orientales 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 Casteil
One home in two is a second home
The census counted 55 second homes and occasional dwellings in Casteil, 43% of its 130 homes: higher than in 97% of compared French towns. 95% 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 Casteil’s residents are under 54.1 and half over; the median of compared French towns is 44. 32% are 65 or older (France median 22%), 3.6% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A higher share of second homes than 97% of compared French towns, at 43%
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
3.3% of households moved in less than two years ago; 16% have been in their home 30 years or more. The benchmark for second homes in the typical compared French town: 2.1%. Casteil has fewer households without a car than 76% of compared French towns, at 6.6%. What’s more, with flats at 11%, Casteil is behind 85% of compared French towns on that count.
Growth of +8% since 2012 puts Casteil ahead of 62% 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 change was +5% from 2012 to 2017 and +2% from 2017 to 2023.
In Casteil, 5.1% of residents are 15 to 24, fewer 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
■ Casteil 54.1. The median compared French town: 44.
By its share of residents aged 65 and over (32%), Casteil is above 90% of compared French towns. In the typical compared French town, 11% of residents are 15 to 24.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Pyrénées-Orientales 52.6%, France 51.8%.
Single-parent households make up 17% in Casteil, more than in 98% 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 Pyrénées-Orientales median and the France median
Living alone · share
There are 2 people in the average household. Just over two in five households are one person living alone, more than in 75% of compared French towns. The usual figure: 10% of households are single parents in the typical compared French town.
Half of residents have a standard of living above €20,330 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 Casteil is €20,330 a year per consumption unit: lower than in 96% of compared French towns.
50% of households are headed by a retired person, more than in 97% 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
Households headed by a manager or professional are rarer here than in 99% of compared French towns. As a reference point, 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).
In Casteil, 11% of residents are immigrants, more 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.
The figure for foreign nationals is 8.5% in Casteil and 4.3% in the typical compared French town. The median compared commune in Pyrénées-Orientales has 7.9%; immigrants here make up a share higher than in just over three quarters of compared French towns. Measured more widely, 6.5% of residents are immigrants 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 larger share of single residents than 82% of compared French towns: 31%
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
43% of residents 15 and over are married. Single residents: 25% in the typical compared French town, for comparison.
Adults with no qualification: 5.1%, a lower share than 99% 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 Casteil, 30% of adults out of school hold a higher-education qualification. For comparison, nearly a fifth of adults out of school have no qualification in the typical compared French town.
7th highest median age among 41 French towns of 139 to 2,582
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.
Median age: 2 of the 4 towns around Casteil are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Casteil | 54.1 | 32% | 43% | 11% |
| Prades 6,148 · 6.1 mi | 53.9 | 34% | 11% | 11% |
| Arles-sur-Tech 2,815 · 13.1 mi | 54.8 | 32% | 9.6% | 9.6% |
| Amélie-les-Bains-Palalda 3,529 · 14.7 mi | 60.7 | 43% | 54% | 9.1% |
| Ille-sur-Têt 5,556 · 15 mi | 49.6 | 28% | 5.1% | 14% |
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 Casteil
What is the population of Casteil?
139 at INSEE’s 2023 census, 8% more than in 2012 (129).
How old are Casteil’s residents?
The median age is 54.1, older than 93% of compared French towns. 15% are under 18 and 32% 65 or older.
How many second homes are there in Casteil?
55, with occasional dwellings: 43% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Casteil?
INSEE counts 16 immigrants (born abroad, not French at birth), 11% of residents, and 12 foreign nationals (8.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Casteil?
€20,330 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.