In Castelviel, 1% of homes are flats, fewer than in 99% of compared French towns
In the typical compared French town, the share of households headed by a manual worker is 14%; Castelviel has 24%. The 2023 Census put the town’s population at 205, in 85 households. The census found that 3.6% of households have no car locally. Compared with other places, second homes are common here: 8.6%, more than in 86% of compared French towns.
Throughout this page, the Gironde 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.
+7% since 2012, a pace 61% of compared French towns didn’t match
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
Between 2012 and 2017 the population moved +15%, then −6% to 2023. Over those years, the median Gironde town changed +16% and the median compared French town +5%.
Castelviel is younger than 67% of compared French towns: a median age of 41.8
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Castelviel 41.8. The median compared French town: 44.
Residents aged 65 and over make up 19%, against 22% in the typical compared French town. Just over one in ten residents are 15 to 24.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Gironde 51.8%, France 51.8%.
A lower share of single-parent households than 96% of compared French towns, at 5.9%
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 Gironde median and the France median
Living alone · share
Here 29% of households are couples with children, where the figure in the typical compared French town is 25%. As a reference point, 10% of households are single parents in the typical compared French town. Average household size: 2.4 people. One-person households are rarer here than in nearly four fifths of compared French towns.
Castelviel sits above 82% of compared French towns for empty homes (10%)
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
15% of households moved in less than two years ago; 17% have been in their home 30 years or more. On average, 6.7% of homes stand empty in the typical compared French town. Households in social housing are rarer here than in 99% of compared French towns.
A typical living standard of €21,730 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.
Living standards centre on €21,730 a year per consumption unit: lower than in 90% of compared French towns.
5.9% of households are headed by a manager or professional, below 77% 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
Here 29% of households are headed by a retired person, where the figure in the typical compared French town is 32%. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Castelviel sits below 74% of compared French towns for immigrants (3.9%)
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 Gironde has 5.1%; immigrants here make up a share lower than in nearly three quarters of compared French towns. About one in 29: that is how common foreign nationals are in Castelviel (3.4%). Immigrants make up 6.5% 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.
Only 16% of residents 15 and over are single in Castelviel
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
Married residents make up 46%, against 43% in the typical compared French town. Against that, 25% of residents 15 and over are single in the typical compared French town.
Castelviel ranks below 60% of compared French towns on graduates of higher education: 27%
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
Against a figure of 19% in the typical compared French town, the share of adults with no qualification in Castelviel comes in at 21%. By way of comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (205 to 2,582 people), the 8th youngest
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.
Castelviel is younger 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 Castelviel
What is the population of Castelviel?
205 at INSEE’s 2023 census, 7% more than in 2012 (191).
How old are Castelviel’s residents?
The median age is 41.8, younger than 67% of compared French towns. 25% are under 18 and 19% 65 or older.
How many second homes are there in Castelviel?
9, with occasional dwellings: 8.6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Castelviel?
INSEE counts 8 immigrants (born abroad, not French at birth), 3.9% of residents, and 7 foreign nationals (3.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Castelviel?
€21,730 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.