Chaussy ranks below 96% of compared French towns on residents aged 65 and over: 13%
In Chaussy, 3.4% of households have no car, beside 11% in the typical compared French town. The town is home to 631 residents in 270 households, by the 2023 Census. 1.9% of households rent social housing (HLM), or about one in 53. On single-parent households, Chaussy sits lower than 98% of compared French towns: 5.5%.
Throughout this page, the Val-d'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 Chaussy
One home in eight is a second home
The census counted 41 second homes and occasional dwellings in Chaussy, 13% of its 320 homes: higher than in 90% of compared French towns. 98% 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.
Second homes: 13%, a higher share than 90% 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
In the typical compared French town, the share of flats is 30%; Chaussy has 9.1%. 3.4% of homes stand empty. Elsewhere, 2.1% of homes are second homes in the typical compared French town.
Chaussy changed by +3% from 2012 to 2023, slower than 59% 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 −4%, and from 2017 to 2023 +7%; the median compared French town changed +5% and the median Val-d'Oise town +8%.
Half of Chaussy is under 41.8, younger than 67% 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
■ Chaussy 41.8. The median compared French town: 44.
One in ten residents are 15 to 24.
Women and men · all residents
48% women, 52% men
About 109 men for every 100 women. Median share of women: Val-d'Oise 51.5%, France 51.8%.
More couples with children than 84% 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 Val-d'Oise median and the France median
Living alone · share
One-person households: 33%, below nearly three fifths of compared French towns. Against that, a quarter of households are couples with children in the typical compared French town. The average household has 2.3 people.
A median standard of living of €30,560 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.
Living standards centre on €30,560 a year per consumption unit: higher than in 87% of compared French towns.
Households headed by a manager or professional make up 16% in Chaussy, more than in 80% 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
With households headed by a retired person at 28%, Chaussy is behind 75% of compared French towns on that count. Compared with other places, households headed by a manual worker are common here: 14%, more than in 53% of compared French towns. Elsewhere, 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).
Below 83% of compared French towns: 2.8% of residents are immigrants
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, 2% of residents are foreign nationals here. Measured more widely, 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.
Married residents: 41%, a lower share than 66% 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%. Typically, 43% of residents 15 and over are married in the typical compared French town.
15% of adults out of school have no qualification, below 72% 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
The share of graduates of higher education is 33%, against 30% in the typical compared French town. For adults with no qualification, the comparison in the typical compared French town is 19%.
Of 41 French towns its size (631 to 2,582 people), the 8th 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 Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Among its 6 nearest neighbors, 2 are older than Chaussy
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Chaussy | 41.8 | 13% | 13% | 2.8% |
| Gasny 3,062 · 4.7 mi | 44.3 | 23% | 2% | 4.8% |
| Magny-en-Vexin 5,779 · 5 mi | 41.6 | 18% | 1.5% | 11% |
| Vexin-sur-Epte 6,015 · 6.1 mi | 42.7 | 19% | 12% | 3.8% |
| Freneuse 4,505 · 6.9 mi | 38.9 | 18% | 4.6% | 15% |
| Bonnières-sur-Seine 5,064 · 8 mi | 38.5 | 17% | 1.1% | 14% |
| Mantes-la-Jolie 43,526 · 8.6 mi | 35.1 | 15% | 0.5% | 30% |
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 Chaussy
What is the population of Chaussy?
631 at INSEE’s 2023 census, 3% more than in 2012 (615).
How old are Chaussy’s residents?
The median age is 41.8, younger than 67% of compared French towns. 22% are under 18 and 13% 65 or older.
How many second homes are there in Chaussy?
41, with occasional dwellings: 13% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Chaussy?
INSEE counts 18 immigrants (born abroad, not French at birth), 2.8% of residents, and 13 foreign nationals (2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Chaussy?
€30,560 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 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.