Above 99% of compared French towns: 43% of households are couples with children
Compared with 11% in the typical compared French town, 2.9% of households have no car here. Census figures put households headed by a retired person at 21% in Chavençon. The town has fewer flats than 94% of compared French towns, at 5.7%. There were 68 households locally at the 2023 Census, home to 159 residents.
Throughout this page, the Oise 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 Chavençon
One home in six is a second home
The census counted 14 second homes and occasional dwellings in Chavençon, 16% of its 87 homes: higher than in 92% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
A town of families
43% of households are couples with children and 7.1% single parents with children; 17% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Chavençon ranks above 92% of compared French towns on second homes: 16%
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
Empty homes are about as common here as in the typical compared French town: 5.8%. Newcomers of less than two years account for just over one in ten households, residents of 30 years or more for 22%. Households in social housing are rarer here than in 99% of compared French towns. For second homes, the comparison in the typical compared French town is 2.1%.
−2% since 2012: slower than 77% 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 Oise town +2%. The first five years brought +6%; the six to 2023, −8%.
19% of residents are 65 or over, below 74% 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
■ Chavençon 45.5. The median compared French town: 44.
The median age in Chavençon is 45.5, higher than in three fifths of compared French towns. To put it in context, 22% of residents are 65 or over in the typical compared French town. The census found that 9.9% of residents are 15 to 24 in the town.
Women and men · all residents
51% women, 49% men
About 95 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
Only 7.1% of households are single parents in Chavençon
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 Oise median and the France median
Living alone · share
Each household has 2.4 people on average. Single-parent households make up 10% in the typical compared French town. On one-person households, Chavençon sits lower than 83% of compared French towns: 29%.
A median standard of living of €32,490 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.
At €32,490 a year per consumption unit, the median standard of living here is higher than in 92% of compared French towns.
Chavençon sits above 74% of compared French towns for households headed by a manager or professional (14%)
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
Chavençon has more households headed by a manual worker than 53% of compared French towns, at 14%. In the typical compared French town, households headed by a manager or professional come to 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Chavençon sits below 70% of compared French towns for immigrants (4.3%)
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.
2.5% of residents are foreign nationals (typical compared French town: 4.3%). On average, 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 lower share of single residents than 94% of compared French towns, at 19%
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
43% of residents 15 and over are married in the typical compared French town, against 46% in Chavençon. In the typical compared French town, the share of single residents is 25%.
Graduates of higher education: 46%, a higher share than 89% 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
Compared with 19% in the typical compared French town, 15% of adults out of school have no qualification here. The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 21st oldest of 41 French towns of 159 to 2,582 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 37.2 in Villejust to 62.3 in Prayssac.
Chavençon 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 |
|---|---|---|---|---|
| Chavençon | 45.5 | 19% | 16% | 4.3% |
| Marines 3,594 · 3 mi | 39.7 | 17% | 1.9% | 6.4% |
| Méru 13,897 · 7.1 mi | 36.7 | 15% | 0.7% | 19% |
| Chaumont-en-Vexin 3,338 · 7.3 mi | 44.2 | 25% | 3.4% | 7.5% |
| Andeville 3,434 · 9.2 mi | 39 | 15% | 1.1% | 6.7% |
| Osny 17,954 · 9.2 mi | 38.6 | 17% | 0.9% | 18% |
| Magny-en-Vexin 5,779 · 9.4 mi | 41.6 | 18% | 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 Chavençon
What is the population of Chavençon?
159 at INSEE’s 2023 census, 2% fewer than in 2012 (162).
How old are Chavençon’s residents?
The median age is 45.5, older than 60% of compared French towns. 19% are under 18 and 19% 65 or older.
How many second homes are there in Chavençon?
14, with occasional dwellings: 16% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Chavençon?
INSEE counts 7 immigrants (born abroad, not French at birth), 4.3% of residents, and 4 foreign nationals (2.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Chavençon?
€32,490 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 October 30, 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.