Châtelus ranks below 99% of compared French towns on flats: 1.6%
In Châtelus, 6% of residents are 15 to 24, beside 11% in the typical compared French town. The town had 97 residents in 48 households at the 2023 census. On the census count, 45% of households are headed by a retired person. Lower than in just over four fifths of compared French towns: 18% of households are couples with children.
Throughout this page, the Isère 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 Châtelus
One home in eight is a second home
The census counted 7 second homes and occasional dwellings in Châtelus, 12% of its 59 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 ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
12% of homes in Châtelus are second homes
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
Here 8% of homes stand empty, where the figure in the typical compared French town is 6.7%. The share of households without a car stands at 6.1%. Households in social housing are rarer here than in 99% of compared French towns. In the typical compared French town, the share of second homes is 2.1%.
From 2012 to 2023, Châtelus outgrew 66% of compared French towns: +9%
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 −1%, then +10% to 2023. Over those years, the median Isère town changed +7% and the median compared French town +5%.
Half of Châtelus is over 48.3, older than 76% 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
■ Châtelus 48.3. The median compared French town: 44.
Set against 22% in the typical compared French town, just over a quarter of residents are 65 or over in Châtelus.
Women and men · all residents
47% women, 53% men
About 113 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%.
Châtelus ranks above 55% of compared French towns on one-person households: 36%
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 Isère median and the France median
Living alone · share
Single-parent households are about as common here as in the typical compared French town, at 9.1%. To put it in context, 35% of households are one person living alone in the typical compared French town.
A median standard of living of €27,610 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 Châtelus is €27,610 a year per consumption unit: higher than in 67% of compared French towns.
The largest group of households: retired (45%)
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 are rarer here than in 99% of compared French towns.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Only 5% of residents are immigrants in Châtelus
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.
On the census count, 4% of residents are foreign nationals. That is lower than in 63% of compared French towns; the median compared commune in Isère has 8%. The benchmark for immigrants in the typical compared French town: 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Châtelus ranks below 99% of compared French towns on single residents: 17%
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
On the census count, just over two in five residents 15 and over are married. Single residents make up 25% in the typical compared French town.
Châtelus sits below 62% of compared French towns for adults with no qualification (17%)
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 share of graduates of higher education stands at 31%. The comparison figure for adults with no qualification is 19% in the typical compared French town.
15th highest median age among 41 French towns of 97 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Châtelus and its 6 nearest towns: 4 of them 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 |
|---|---|---|---|---|
| Châtelus | 48.3 | 26% | 12% | 5% |
| Saint-Jean-en-Royans 2,874 · 5.2 mi | 50.9 | 30% | 6.5% | 6% |
| Saint-Marcellin 7,700 · 6.9 mi | 50.5 | 29% | 2% | 11% |
| Chatte 2,518 · 7.3 mi | 50.7 | 28% | 2.3% | 3.9% |
| Villard-de-Lans 4,328 · 8.5 mi | 51 | 28% | 64% | 3.7% |
| Autrans-Méaudre en Vercors 2,936 · 10 mi | 46.7 | 25% | 53% | 2.6% |
| Vinay 4,438 · 10.4 mi | 45.6 | 23% | 2.1% | 6.7% |
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 Châtelus
What is the population of Châtelus?
97 at INSEE’s 2023 census, 9% more than in 2012 (89).
How old are Châtelus’ residents?
The median age is 48.3, older than 76% of compared French towns. 17% are under 18 and 26% 65 or older.
How many second homes are there in Châtelus?
7, with occasional dwellings: 12% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Châtelus?
INSEE counts 5 immigrants (born abroad, not French at birth), 5% of residents, and 4 foreign nationals (4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Châtelus?
€27,610 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 October 30, 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.