A median age of 57.6: Castéra-Verduzan is older than 97% of compared French towns
Households headed by a manager or professional make up 3.9%, against 9.4% in the typical compared French town. The 2023 Census counted 1,041 residents in 490 households. Couples with children account for 15%. 9.8% of homes are second homes, more than in 88% of compared French towns.
Throughout this page, the Gers 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 Castéra-Verduzan
An older town
Half of Castéra-Verduzan’s residents are under 57.6 and half over; the median of compared French towns is 44. 40% are 65 or older (France median 22%), 16% 80 or older. Ages ↓
Empty homes
The census found 81 homes empty (13%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
From 2012 to 2023, Castéra-Verduzan outgrew 72% of compared French towns: +11%
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
In two steps, +5% to 2017 and +5% after, the town’s change compares with +5% for the median compared French town and ±0% in Gers.
Residents aged 65 and over: 40%, a higher share than 98% 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
■ Castéra-Verduzan 57.6. The median compared French town: 44.
Here 6.3% of residents are 15 to 24, where the figure in the typical compared French town is 11%. By way of comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 87 men for every 100 women. Median share of women: Gers 52.4%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
One-person households make up 39% in Castéra-Verduzan, more than in 66% 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 Gers median and the France median
Living alone · share
In Castéra-Verduzan, nearly one in ten households are single parents, beside 10% in the typical compared French town. Against that, just over a third of households are one person living alone in the typical compared French town.
Households in social housing make up 3.9% in Castéra-Verduzan, less than in 91% 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
Compared with 30% in the typical compared French town, 19% of homes are flats here. The share of households in social housing in the typical compared French town is 12%. Households without a car account for 6.3%. Few places have as many empty homes: 13% here, more than in 91% of compared French towns.
Median living standard: €24,170 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.
At €24,170 a year per consumption unit, the median standard of living here is lower than in 69% of compared French towns.
More households headed by a retired person than 84% of compared French towns: 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
By its share of households headed by a manual worker (8.6%), Castéra-Verduzan is below 84% of compared French towns. The share of households headed by a retired person in the typical compared French town is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Castéra-Verduzan sits below 73% of compared French towns for immigrants (4.1%)
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 Gers has 7.9%; immigrants here make up a share lower than in 73% of compared French towns. Put another way, about one in 32: 3.1% of residents are foreign nationals. The usual figure: 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.
Below 96% of compared French towns: 19% of residents 15 and over are single
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 figure for married residents is 41% in Castéra-Verduzan and 43% in the typical compared French town. Against that, 25% of residents 15 and over are single in the typical compared French town.
Castéra-Verduzan ranks below 65% of compared French towns on graduates of higher education: 26%
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
The census found that nearly a fifth of adults out of school have no qualification in Castéra-Verduzan. In the typical compared French town, the share of graduates of higher education is 30%.
Of 41 French towns its size (1,041 to 2,582 people), 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Castéra-Verduzan is older than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Castéra-Verduzan
What is the population of Castéra-Verduzan?
1,041 at INSEE’s 2023 census, 11% more than in 2012 (938).
How old are Castéra-Verduzan’s residents?
The median age is 57.6, older than 97% of compared French towns. 15% are under 18 and 40% 65 or older.
How many second homes are there in Castéra-Verduzan?
62, with occasional dwellings: 9.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Castéra-Verduzan?
INSEE counts 42 immigrants (born abroad, not French at birth), 4.1% of residents, and 32 foreign nationals (3.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Castéra-Verduzan?
€24,170 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 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.