Photo: LePachy · Public domainHouseholds headed by a manual worker make up 6.1% in Fontanil-Cornillon, less than in 94% of compared French towns
In Fontanil-Cornillon, 58% of homes are flats, beside 30% in the typical compared French town. Put another way, about one in 12: nearly one in ten residents are 15 to 24. Lower than in 86% of compared French towns: 7.4% of households are single parents. The 2023 Census counted 3,404 residents in 1,500 households.
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 Fontanil-Cornillon
Growing fast
Fontanil-Cornillon had 2,796 residents at the 2012 census and 3,404 in 2023, up 22%: faster growth than in 92% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A growing town: +22% since 2012, faster than 92% 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
For comparison, the median compared French town changed +5% and the median Isère town +7%. The first five years brought −3%; the six to 2023, +26%.
Half of Fontanil-Cornillon is under 43.4, younger than 54% 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
■ Fontanil-Cornillon 43.4. The median compared French town: 44.
The census found that 23% of residents are 65 or over in Fontanil-Cornillon.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%.
A higher share of couples with children than 55% of compared French towns, at 26%
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
On average, 2.2 people share a household. In the typical compared French town, the share of couples with children is 25%. Here 34% of households are one person living alone, where the figure in the typical compared French town is 35%.
Fontanil-Cornillon ranks below 71% of compared French towns on households without a car: 7.3%
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
There is little gap on second homes: 1.3%, about the same as in the typical compared French town. Newcomers of less than two years account for 15% of households, residents of 30 years or more for 16%. Measured more widely, 11% of households have no car in the typical compared French town.
Median standard of living: €31,910 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 Fontanil-Cornillon’s residents live in households with a standard of living below €31,910 a year per consumption unit, and half above: higher than in 91% of compared French towns. Below the poverty line: 6.0% of residents.
In Fontanil-Cornillon, 17% of households are headed by a manager or professional, more than in 81% 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
The share of households headed by a retired person tops 71% of compared French towns: 36%. Typically, nearly one in ten households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Fontanil-Cornillon sits above 68% of compared French towns for immigrants (9.5%)
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.
Foreign nationals make up 6.9%, against 4.3% in the typical compared French town. In the typical compared French town, 6.5% of residents are immigrants.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Fontanil-Cornillon sits below 91% of compared French towns for single residents (20%)
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
Here 46% of residents 15 and over are married, where the figure in the typical compared French town is 43%. The benchmark for single residents in the typical compared French town: 25%.
46% of adults out of school hold a higher-education qualification, a share 90% of compared French towns don’t reach
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 figure for adults with no qualification is 15% in Fontanil-Cornillon and 19% in the typical compared French town. As a yardstick, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 3,375 to 3,435 people, the 17th 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.
At the ends of the range sit Porcheville (37.3), the youngest, and Sainte-Marie-de-Ré (58.5), the oldest.
2 in 6 nearby towns have a higher median age than Fontanil-Cornillon
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Fontanil-Cornillon | 43.4 | 23% | 1.3% | 9.5% |
| Saint-Égrève 17,986 · 1.6 mi | 42 | 21% | 1% | 10% |
| Voreppe 9,922 · 2.7 mi | 44.7 | 23% | 1.4% | 8.8% |
| Sassenage 11,646 · 3 mi | 44.2 | 22% | 1.9% | 9.6% |
| Saint-Martin-le-Vinoux 6,078 · 3.3 mi | 37.2 | 17% | 1.6% | 19% |
| Fontaine 22,020 · 4.2 mi | 42.2 | 21% | 1% | 22% |
| La Tronche 6,424 · 5.2 mi | 34.9 | 19% | 3.4% | 11% |
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 Fontanil-Cornillon
What is the population of Fontanil-Cornillon?
3,404 at INSEE’s 2023 census, 22% more than in 2012 (2,796).
How old are Fontanil-Cornillon’s residents?
The median age is 43.4, younger than 54% of compared French towns. 20% are under 18 and 23% 65 or older.
How many second homes are there in Fontanil-Cornillon?
21, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Fontanil-Cornillon?
INSEE counts 320 immigrants (born abroad, not French at birth), 9.5% of residents, and 240 foreign nationals (6.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Fontanil-Cornillon?
€31,910 a year per consumption unit in 2023 (median of compared French towns €25,970); 6.0% 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 8, 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.