More couples with children than 99% of compared French towns: 43%
In the typical compared French town, just over one in ten households have no car; in Butry-sur-Oise, 4.5%. Census figures put households headed by a manual worker at 6.5% locally. At 12%, the share of flats is lower than in 83% of compared French towns. This Val-d'Oise town had 2,252 residents in 850 households at the 2023 census.
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 Butry-sur-Oise
A town of families
43% of households are couples with children and 7.7% single parents with children; 20% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
+2% since 2012, a pace below 62% 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
Against +5% for the median compared French town and +8% for the median Val-d'Oise town, the change came in two steps: +3% from 2012 to 2017, then −1% to 2023.
A smaller share of residents aged 65 and over than 91% of compared French towns: 15%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Butry-sur-Oise 40.4. The median compared French town: 44.
With a median age of 40.4, Butry-sur-Oise is younger than 77% of compared French towns. In the typical compared French town, 22% of residents are 65 or over. Across Butry-sur-Oise, just over one in ten residents are 15 to 24.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Val-d'Oise 51.5%, France 51.8%.
In Butry-sur-Oise, 21% of households are one person living alone, fewer than in 99% 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-d'Oise median and the France median
Living alone · share
7.7% of households are single parents (typical compared French town: 10%). Against that, 35% of households are one person living alone in the typical compared French town. On average, 2.7 people share a household.
Empty homes make up 4.9% in Butry-sur-Oise, less than in 76% 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
Against a figure of 12% in the typical compared French town, the share of households in social housing in Butry-sur-Oise comes in at 10%. For comparison, 6.7% of homes stand empty in the typical compared French town. About one in 91: that is how common second homes are in Butry-sur-Oise (1.1%).
At the median, €31,400 a year to live on
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.
Half of Butry-sur-Oise’s residents live in households with a standard of living below €31,400 a year per consumption unit, and half above: higher than in 89% of compared French towns. Poverty touches 8.0% of residents.
Households headed by a retired person make up 23% in Butry-sur-Oise, less than in 88% 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 manager or professional: 14%, above 72% of compared French towns. For households headed by a retired person, the comparison in the typical compared French town is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Butry-sur-Oise: 9% of residents are immigrants, above 66% 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.
Foreign nationals: 6.5% here and 4.3% 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.
Butry-sur-Oise ranks above 83% of compared French towns on married residents: 48%
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
For Butry-sur-Oise, the census puts single residents at 25%. In the typical compared French town, married residents come to 43%.
Butry-sur-Oise sits above 84% of compared French towns for graduates of higher education (42%)
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
13% of adults out of school have no qualification (typical compared French town: 19%). The share of graduates of higher education in the typical compared French town is 30%.
The 4th youngest of 41 French towns of 2,252 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Butry-sur-Oise is younger than 4 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Butry-sur-Oise | 40.4 | 15% | 1.1% | 9% |
| Mériel 5,347 · 0.9 mi | 41.3 | 16% | 1.3% | 8.9% |
| Parmain 5,655 · 1.7 mi | 42.6 | 18% | 2.2% | 8.4% |
| Auvers-sur-Oise 6,863 · 2.1 mi | 44.3 | 20% | 3.4% | 9.4% |
| Méry-sur-Oise 9,983 · 2.1 mi | 37.9 | 12% | 0.7% | 15% |
| L'Isle-Adam 12,493 · 2.1 mi | 47.1 | 27% | 3.5% | 10% |
| Frépillon 3,317 · 2.5 mi | 39 | 14% | 0.7% | 8.2% |
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 Butry-sur-Oise
What is the population of Butry-sur-Oise?
2,252 at INSEE’s 2023 census, 2% more than in 2012 (2,213).
How old are Butry-sur-Oise’s residents?
The median age is 40.4, younger than 77% of compared French towns. 25% are under 18 and 15% 65 or older.
How many second homes are there in Butry-sur-Oise?
10, with occasional dwellings: 1.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Butry-sur-Oise?
INSEE counts 200 immigrants (born abroad, not French at birth), 9% of residents, and 150 foreign nationals (6.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Butry-sur-Oise?
€31,400 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.