Above 90% of compared French towns: 13% of homes are second homes
With households headed by a manager or professional at 16%, Saint-Chéron is ahead of 80% of compared French towns on that count. For Saint-Chéron, the census puts residents aged 65 and over at 18%. On couples with children, Saint-Chéron sits higher than just over two thirds of compared French towns: 29%. The 2023 Census put the town’s population at 5,132, in 2,190 households.
Throughout this page, the Essonne 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 Saint-Chéron
One home in eight is a second home
The census counted 350 second homes and occasional dwellings in Saint-Chéron, 13% of its 2,710 homes: higher than in 90% of compared French towns. 8.5% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Below 63% of compared French towns: 9.5% of households rent social housing (HLM)
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
Long tenure is the mark of 20% of households (30 years or more), short tenure of 10% (under two years). Measured more widely, 12% of households rent social housing (HLM) in the typical compared French town. At 26%, the share of flats is lower than in 57% of compared French towns. On empty homes, 6.1% here is much the same as in the typical compared French town.
Saint-Chéron grew +6% from 2012 to 2023, ahead of 56% 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 population moved +5%, and from 2017 to 2023 +1%; the median compared French town changed +5% and the median Essonne town +6%.
Saint-Chéron is younger than 68% of compared French towns: a median age of 41.6
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Saint-Chéron 41.6. The median compared French town: 44.
Against a figure of 11% in the typical compared French town, the share of residents aged 15 to 24 in Saint-Chéron comes in at 12%.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Essonne 51.3%, France 51.8%.
A smaller share of one-person households than 66% of compared French towns: 32%
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 Essonne median and the France median
Living alone · share
On average, 2.3 people share a household. Elsewhere, 35% of households are one person living alone in the typical compared French town. Higher than in just over three quarters of compared French towns: 12% of households are single parents.
A median standard of living of €30,260 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 median standard of living in Saint-Chéron is €30,260 a year per consumption unit: higher than in 86% of compared French towns. 8.0% of residents have a standard of living below 60% of France’s median.
Saint-Chéron ranks below 72% of compared French towns on households headed by a retired person: 28%
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
12% of households are headed by a manual worker; in the typical compared French town the figure is 14%. As a reference point, 32% of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Saint-Chéron sits above 70% of compared French towns for immigrants (9.8%)
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.
Compared with 4.3% in the typical compared French town, 7.6% of residents are foreign nationals here. The wider picture: 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.
More single residents than 64% of compared French towns: 27%
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 Saint-Chéron, 43% of residents 15 and over are married. The comparison figure for single residents is 25% in the typical compared French town.
Saint-Chéron ranks above 76% of compared French towns on graduates of higher education: 39%
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
Adults with no qualification: 15%, below 72% of compared French towns. Across the comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Ranked by age, 10th youngest of 41 French towns this size
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 Villenoy (36), the youngest, and Saint-Georges-de-Didonne (67.3), the oldest.
2 of 6 neighbors are older than Saint-Chéron
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Saint-Chéron | 41.6 | 18% | 13% | 9.8% |
| Breuillet 9,157 · 2.8 mi | 39.4 | 16% | 1.3% | 13% |
| Bruyères-le-Châtel 3,788 · 4.1 mi | 40.6 | 17% | 1% | 8.1% |
| Boissy-sous-Saint-Yon 3,882 · 4.1 mi | 40.7 | 16% | 2% | 6% |
| Étréchy 6,986 · 5.1 mi | 43.8 | 23% | 1.6% | 8.5% |
| Briis-sous-Forges 3,342 · 5.1 mi | 44 | 19% | 1.4% | 7.4% |
| Égly 7,166 · 5.3 mi | 35.7 | 14% | 1% | 20% |
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 Saint-Chéron
What is the population of Saint-Chéron?
5,132 at INSEE’s 2023 census, 6% more than in 2012 (4,834).
How old are Saint-Chéron’s residents?
The median age is 41.6, younger than 68% of compared French towns. 24% are under 18 and 18% 65 or older.
How many second homes are there in Saint-Chéron?
350, with occasional dwellings: 13% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Chéron?
INSEE counts 500 immigrants (born abroad, not French at birth), 9.8% of residents, and 390 foreign nationals (7.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Chéron?
€30,260 a year per consumption unit in 2023 (median of compared French towns €25,970); 8.0% 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.