In Santeny, 34% of households are couples with children, more than in 90% of compared French towns
17% of households are headed by a manager or professional; in the typical compared French town the figure is 9.4%. At the 2023 Census Santeny was home to 3,913 people in 1,590 households. The census found that 6.9% of households have no car locally. The town has fewer empty homes than 78% of compared French towns, at 4.7%.
Throughout this page, the Val-de-Marne 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 Santeny
A town of families
34% of households are couples with children and 12% single parents with children; 18% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Santeny’s population changed by +7% since 2012, more than in 60% 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 change was +3% from 2012 to 2017 and +4% from 2017 to 2023. The median compared French town changed +5% over the same years, the median Val-de-Marne town +7%.
12% of residents are 15 to 24, a share 79% of compared French towns don’t reach
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Santeny 43.9. The median compared French town: 44.
A fifth of residents are 65 or over, against 22% in the typical compared French town. With a median age of 43.9, Santeny is younger than just over half of compared French towns. Typically, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Median share of women: Val-de-Marne 52.1%, France 51.8%.
One-person households: 26%, a lower share than 90% 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 Val-de-Marne median and the France median
Living alone · share
A household here holds 2.4 people on average. The share of one-person households in the typical compared French town is 35%. Few places have as many single-parent households: 12% here, more than in 77% of compared French towns.
A larger share of second homes than 68% of compared French towns: 3.6%
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
The share of households in social housing is 14%, against 12% in the typical compared French town. In the typical compared French town, 2.1% of homes are second homes. Recent arrivals (under two years) make up 8% of households; long-stayers (30 years or more) 20%.
The median resident lives on €34,310 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 median standard of living in Santeny is €34,310 a year per consumption unit: higher than in 95% of compared French towns. As for poverty, 9.0% of residents are below the line.
Only 6.6% of households are headed by a manual worker in Santeny
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
17% of Santeny’s households are headed by a manager or professional, against 9.4% in the median compared French town; 25% by a retired person (32%). Against that, 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).
Santeny: 12% of residents are immigrants, above 77% 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.
In the typical compared French town, 4.3% of residents are foreign nationals; in Santeny, 8.5%. Typically, 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.
In Santeny, 48% of residents 15 and over are married, more than in 85% 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
The share of single residents stands at 25%. In the typical compared French town, married residents come to 43%.
Santeny sits below 92% of compared French towns for adults with no qualification (11%)
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 30% in the typical compared French town, the share of graduates of higher education in Santeny comes in at 46%. In the typical compared French town, the share of adults with no qualification is 19%.
The 20th oldest of 41 French towns of 3,878 to 3,945 people
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 32.4 in Suippes to 57.7 in Belz.
Every neighbor is younger than Santeny
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Santeny | 43.9 | 20% | 3.6% | 12% |
| Servon 3,565 · 1 mi | 42.3 | 17% | 1.1% | 12% |
| Marolles-en-Brie 4,781 · 1.1 mi | 43.5 | 20% | 0.8% | 10% |
| Lésigny 6,923 · 1.9 mi | 43.8 | 20% | 1.4% | 7.3% |
| Villecresnes 11,647 · 2.1 mi | 41.5 | 19% | 1% | 13% |
| Mandres-les-Roses 4,922 · 2.3 mi | 42.7 | 18% | 1.5% | 11% |
| Périgny 2,724 · 2.5 mi | 40.3 | 14% | 1.1% | 8.4% |
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 Santeny
What is the population of Santeny?
3,913 at INSEE’s 2023 census, 7% more than in 2012 (3,651).
How old are Santeny’s residents?
The median age is 43.9, younger than 51% of compared French towns. 22% are under 18 and 20% 65 or older.
How many second homes are there in Santeny?
63, with occasional dwellings: 3.6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Santeny?
INSEE counts 460 immigrants (born abroad, not French at birth), 12% of residents, and 330 foreign nationals (8.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Santeny?
€34,310 a year per consumption unit in 2023 (median of compared French towns €25,970); 9.0% 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 9, 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.