2.2% of households are headed by a manager or professional, fewer than in 99% of compared French towns
11% of households have no car in the typical compared French town, against 4.9% in Gillonnay. The 2023 Census put the town’s population at 1,009, in 450 households. The share of flats stands at 8.6%. The median age locally is 48.9, higher than in nearly four fifths 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.
A change of +3% since 2012 leaves Gillonnay behind 55% 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
Over the same years the median compared French town changed +5%, the median Isère town +7%. From 2012 to 2017 the change was +4%; from 2017 to 2023, ±0%.
Residents aged 15 to 24 make up 8.9% in Gillonnay, less than in 83% 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
■ Gillonnay 48.9. The median compared French town: 44.
Set against 22% in the typical compared French town, nearly a quarter of residents are 65 or over in Gillonnay.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
29% of households are one person living alone, below 82% 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
9% of households are single parents; in the typical compared French town the figure is 10%. Gillonnay has more couples with children than 63% of compared French towns, at 28%. In the typical compared French town, one-person households come to 35%. The average household has 2.2 people.
8.2% of households rent social housing (HLM), below 70% 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
Compared with 2.1% in the typical compared French town, 3.7% of homes are second homes here. Typically, 12% of households rent social housing (HLM) in the typical compared French town. Empty homes make up about one in 16 here (6.4%).
The median resident lives on €26,850 a year per consumption unit
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 €26,850 a year per consumption unit, higher than in 60% of compared French towns.
Gillonnay: 40% of households are headed by a retired person, above 83% 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 manual worker account for 15%. The comparison figure for households headed by a retired person is 32% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Foreign nationals make up 2.3% in Gillonnay, less than in 74% 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.
The median compared commune in Isère has 8%; immigrants here make up a share lower than in nearly two thirds of compared French towns. The benchmark for foreign nationals in the typical compared French town: 4.3%. Immigrants make up about one in 21 here (4.8%).
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A smaller share of single residents than 99% of compared French towns: 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
In the typical compared French town, 43% of residents 15 and over are married; in Gillonnay, 55%. The comparison figure for single residents is 25% in the typical compared French town.
Gillonnay ranks below 83% 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
Across Gillonnay, 30% of adults out of school hold a higher-education qualification. Adults with no qualification make up 19% in the typical compared French town.
Of 41 French towns its size (1,009 to 2,582 people), the 15th 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Gillonnay is older than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Gillonnay | 48.9 | 24% | 3.7% | 4.8% |
| La Côte-Saint-André 4,873 · 1.7 mi | 46.7 | 27% | 3.4% | 12% |
| Saint-Étienne-de-Saint-Geoirs 3,425 · 4.5 mi | 43 | 23% | 4.4% | 6.8% |
| Saint-Siméon-de-Bressieux 3,186 · 4.8 mi | 44.2 | 24% | 2.6% | 8.6% |
| Le Grand-Lemps 3,083 · 6.1 mi | 44.2 | 21% | 2.6% | 8.3% |
| Apprieu 3,615 · 9.8 mi | 42.2 | 17% | 2% | 5.1% |
| Renage 3,348 · 10.3 mi | 44 | 21% | 1.5% | 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 Gillonnay
What is the population of Gillonnay?
1,009 at INSEE’s 2023 census, 3% more than in 2012 (975).
How old are Gillonnay’s residents?
The median age is 48.9, older than 79% of compared French towns. 21% are under 18 and 24% 65 or older.
How many second homes are there in Gillonnay?
19, with occasional dwellings: 3.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Gillonnay?
INSEE counts 49 immigrants (born abroad, not French at birth), 4.8% of residents, and 23 foreign nationals (2.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Gillonnay?
€26,850 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 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.