Crolles: 27% of households are headed by a manager or professional, above 95% of compared French towns
In Crolles, 29% of households are one person living alone, beside 35% in the typical compared French town. At 4%, the share of empty homes is lower than in 87% of compared French towns. Census day 2023: 8,609 residents and 3,710 households locally. 6.7% of households have no car, or about one in 15.
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 Crolles
Many graduates
53% of residents 15 and over who have left education hold a diploma above the bac, 26% a master’s or more (bac+5). Qualifications ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +5% change since 2012: slower than 51% 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
Here the change came as ±0% to 2017, then +4% to 2023.
Crolles is older than 63% of compared French towns: a median age of 45.9
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Crolles 45.9. The median compared French town: 44.
Here just over a fifth of residents are 65 or over, where the figure in the typical compared French town is 22%. Just over one in ten residents are 15 to 24, or about one in nine.
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%.
A higher share of single-parent households than 82% of compared French towns, at 12%
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
Set against 25% in the typical compared French town, 27% of households are couples with children in Crolles. The wider picture: one in ten households are single parents in the typical compared French town. Households average 2.3 people.
A higher share of households in social housing than 76% of compared French towns, at 20%
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 15, where the median compared French town has 11%. By way of comparison, just over one in ten households rent social housing (HLM) in the typical compared French town. The share of second homes stands at 0.7%. Compared with other places, flats are common here: 40%, more than in 63% of compared French towns.
A typical living standard of €31,300 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 midpoint of living standards here is €31,300 a year per consumption unit, higher than in 89% of compared French towns. Under the poverty line sit 7.0% of residents.
In Crolles, 9% of households are headed by a manual worker, fewer than in 82% 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
32% of households are headed by a retired person in the typical compared French town, against 30% in Crolles. For comparison, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
7.5% of residents are immigrants, more than in 57% 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.
3.8% of residents are foreign nationals. By way of comparison, 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.
A higher share of married residents than 87% of compared French towns, at 49%
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, the share of single residents is 25%; Crolles has 23%. Typically, 43% of residents 15 and over are married in the typical compared French town.
Graduates of higher education: 53%, a higher share than 95% of compared French towns
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
In the typical compared French town, the share of adults with no qualification is 19%; Crolles has 11%. 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 (8,519 to 8,699 people), the 12th 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 34.3 in Saint-Jory to 62.3 in Le Grau-du-Roi.
Crolles 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 |
|---|---|---|---|---|
| Crolles | 45.9 | 21% | 0.7% | 7.5% |
| Bernin 3,334 · 1.2 mi | 47.7 | 25% | 1.4% | 5.7% |
| Froges 3,285 · 2.2 mi | 47.6 | 24% | 0.6% | 6.5% |
| Saint-Nazaire-les-Eymes 3,016 · 2.5 mi | 47 | 23% | 1.2% | 4.9% |
| Villard-Bonnot 7,509 · 2.7 mi | 40.9 | 18% | 1% | 7.3% |
| Saint-Ismier 7,165 · 3.3 mi | 49.2 | 27% | 2.4% | 6.2% |
| Le Versoud 4,900 · 4.5 mi | 41.6 | 17% | 0.7% | 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 Crolles
What is the population of Crolles?
8,609 at INSEE’s 2023 census, 5% more than in 2012 (8,237).
How old are Crolles’ residents?
The median age is 45.9, older than 63% of compared French towns. 23% are under 18 and 21% 65 or older.
How many second homes are there in Crolles?
28, with occasional dwellings: 0.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Crolles?
INSEE counts 640 immigrants (born abroad, not French at birth), 7.5% of residents, and 330 foreign nationals (3.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Crolles?
€31,300 a year per consumption unit in 2023 (median of compared French towns €25,970); 7.0% of residents live below the poverty line. 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.