More second homes than 94% of compared French towns: 24%
Single-parent households: 4.6% here and 10% in the typical compared French town. The 2023 Census counted 491 residents in 220 households. Put another way, about one in 17: 5.9% of homes are flats. Lower than in 99% of compared French towns: 0.9% of households rent social housing (HLM).
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 Châtel-en-Trièves
One home in four is a second home
The census counted 82 second homes and occasional dwellings in Châtel-en-Trièves, 24% of its 340 homes: higher than in 94% of compared French towns. 96% 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 Châtel-en-Trièves’ residents are under 51.3 and half over; the median of compared French towns is 44. 28% are 65 or older (France median 22%), 6.2% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Households without a car make up 5% in Châtel-en-Trièves, less than in 88% 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
Car-free households: one in 20, where the median compared French town has 11%. Locally, one in ten homes stand empty.
A +5% change since 2012: faster than 50% 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
From 2012 to 2017 the change was −4%; from 2017 to 2023, +9%.
Half of Châtel-en-Trièves is over 51.3, older than 87% 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
■ Châtel-en-Trièves 51.3. The median compared French town: 44.
In the typical compared French town, just over one in ten residents are 15 to 24; in Châtel-en-Trièves, 8%. Few places have as many residents aged 65 and over: 28% here, more than in just over four fifths of compared French towns.
Women and men · all residents
47% women, 53% men
About 112 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%.
Châtel-en-Trièves ranks below 86% of compared French towns on one-person households: 28%
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
There are 2.2 people in the average household. On average, just over a third of households are one person living alone in the typical compared French town. 29% of households are couples with children, more than in 70% of compared French towns.
Half of residents have a standard of living above €25,680 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.
Half of Châtel-en-Trièves’ residents live in households with a standard of living below €25,680 a year per consumption unit, and half above: lower than in 53% of compared French towns.
44% of households are headed by a retired person, a share 91% of compared French towns don’t reach
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
With households headed by a manual worker at 16%, Châtel-en-Trièves is ahead of 62% of compared French towns on that count. Measured more widely, 32% of households are headed by a retired person in the typical compared French town. 13% of households are headed by a manager or professional.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Châtel-en-Trièves ranks below 78% of compared French towns on foreign nationals: 2%
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.
Immigrants: 4.5%, below just over two thirds of compared French towns. By way of comparison, 4.3% of residents are foreign nationals 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 18% of residents 15 and over are single in Châtel-en-Trièves
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
In the typical compared French town, 43% of residents 15 and over are married; in Châtel-en-Trièves, 47%. Single residents make up 25% in the typical compared French town.
Châtel-en-Trièves ranks below 85% of compared French towns on adults with no qualification: 13%
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
37% of adults out of school hold a higher-education qualification; in the typical compared French town the figure is 30%. As a yardstick, 19% of adults out of school have no qualification in the typical compared French town.
41 French towns of 491 to 2,582 people: this is the 11th 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
No nearby town is as old as Châtel-en-Trièves
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Châtel-en-Trièves | 51.3 | 28% | 24% | 4.5% |
| La Mure 4,963 · 4.4 mi | 49.5 | 30% | 5.1% | 8.2% |
| Saint-Georges-de-Commiers 2,699 · 14.3 mi | 43 | 21% | 1.5% | 4% |
| Vif 8,530 · 15.9 mi | 44.2 | 20% | 1.5% | 5.1% |
| Vizille 7,292 · 16.1 mi | 44 | 23% | 2.4% | 8% |
| Champ-sur-Drac 3,335 · 16.6 mi | 44.9 | 23% | 1.2% | 6.1% |
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 Châtel-en-Trièves
What is the population of Châtel-en-Trièves?
491 at INSEE’s 2023 census, 5% more than in 2012 (468).
How old are Châtel-en-Trièves’ residents?
The median age is 51.3, older than 87% of compared French towns. 19% are under 18 and 28% 65 or older.
How many second homes are there in Châtel-en-Trièves?
82, with occasional dwellings: 24% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Châtel-en-Trièves?
INSEE counts 22 immigrants (born abroad, not French at birth), 4.5% of residents, and 10 foreign nationals (2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Châtel-en-Trièves?
€25,680 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.