Older than 93% of compared French towns: half of Prébois is over 54
Where 6.7% of homes stand empty in the typical compared French town, Prébois has 3.4%. The 2023 Census counted 170 residents in 87 households. Put another way, about one in 18: 5.6% of households are headed by a manual worker. Households without a car are rarer here than in 97% of compared French towns.
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 Prébois
One home in four is a second home
The census counted 28 second homes and occasional dwellings in Prébois, 24% of its 120 homes: higher than in 94% 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 ↓
An older town
Half of Prébois’ residents are under 54 and half over; the median of compared French towns is 44. 30% are 65 or older (France median 22%), 7% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
24% of homes in Prébois 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
Where 30% of homes are flats in the typical compared French town, Prébois has 5.8%. Measured more widely, 2.1% of homes are second homes in the typical compared French town. Households in social housing are rarer here than in 99% of compared French towns.
Prébois changed by +3% from 2012 to 2023, behind 57% 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 median Isère town changed +7% and the median compared French town +5%; here the first five years brought −1% and the next six +4%.
Only 5.8% of residents are 15 to 24 in Prébois
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Prébois 54. The median compared French town: 44.
The share of residents aged 65 and over is 30%, against 22% in the typical compared French town. By way of comparison, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
55% women, 45% men
About 81 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
In Prébois, 22% of households are couples with children, fewer than in 64% 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 Isère median and the France median
Living alone · share
Here 33% of households are one person living alone, where the figure in the typical compared French town is 35%. For comparison, 25% of households are couples with children in the typical compared French town. The average household has 1.9 people. Single-parent households are rarer here than in 99% of compared French towns.
Median standard of living: €27,770 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 €27,770 a year per consumption unit: higher than in 69% of compared French towns.
In Prébois, 11% of households are headed by a manager or professional, more than in 60% 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 retired person are more common here than in 55% of compared French towns. The comparison figure for households headed by a manager or professional is 9.4% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 1.7%, a lower share than 94% 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.
By its share of foreign nationals (0.6%), Prébois is below 99% of compared French towns. As a reference point, 6.5% of residents are immigrants in the typical compared French town. The median compared commune in Isère has 8%; immigrants here make up a share lower than in 94% of compared French towns.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
19% of residents 15 and over are single, below 97% of compared French towns
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
50% of residents 15 and over are married; in the typical compared French town the figure is 43%. In the typical compared French town, the share of single residents is 25%.
A larger share of graduates of higher education than 74% of compared French towns: 38%
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 Prébois comes in at 15%. Measured more widely, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 170 to 2,582 people: this is the 7th 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 Prébois
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Prébois | 54 | 30% | 24% | 1.7% |
| La Mure 4,963 · 9.3 mi | 49.5 | 30% | 5.1% | 8.2% |
| Die 4,844 · 16.1 mi | 50.6 | 29% | 11% | 6.7% |
| Saint-Georges-de-Commiers 2,699 · 17.2 mi | 43 | 21% | 1.5% | 4% |
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 Prébois
What is the population of Prébois?
170 at INSEE’s 2023 census, 3% more than in 2012 (165).
How old are Prébois’ residents?
The median age is 54, older than 93% of compared French towns. 16% are under 18 and 30% 65 or older.
How many second homes are there in Prébois?
28, with occasional dwellings: 24% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Prébois?
INSEE counts 3 immigrants (born abroad, not French at birth), 1.7% of residents, and 1 foreign nationals (0.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Prébois?
€27,770 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.