A median age of 36.4: Beaumont-sur-Oise is younger than 93% of compared French towns
In Beaumont-sur-Oise, 58% of homes are flats, beside 30% in the typical compared French town. For Beaumont-sur-Oise, the census puts households without a car at 18%. 39% of households are one person living alone, a higher share than in 67% of compared French towns. Census day 2023: 10,232 residents and 4,340 households here.
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 Beaumont-sur-Oise
Immigrants
INSEE counts 1,900 immigrants in Beaumont-sur-Oise (people born abroad who weren’t French at birth, whatever their nationality now): 19% of residents, against 16% for the median compared commune in Val-d'Oise. 14% are foreign nationals. Immigrants and foreign nationals ↓
A young town
Half of Beaumont-sur-Oise’s residents are under 36.4 and half over; the median of compared French towns is 44. 21% are under 15 and 14% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Growth of +9% since 2012 puts Beaumont-sur-Oise ahead of 65% 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 change was +2%; from 2017 to 2023, +7%. Over the same years the median compared French town changed +5%, the median Val-d'Oise town +8%.
Below 95% of compared French towns: 14% of residents are 65 or over
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Beaumont-sur-Oise 36.4. The median compared French town: 44.
Here 13% of residents are 15 to 24, where the figure in the typical compared French town is 11%. For comparison, 22% of residents are 65 or over 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-d'Oise 51.5%, France 51.8%.
Beaumont-sur-Oise sits above 91% of compared French towns for single-parent households (14%)
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
Households average 2.3 people. Higher than in 62% of compared French towns: 27% of households are couples with children. The share of single-parent households in the typical compared French town is 10%.
In Beaumont-sur-Oise, 19% of households rent social housing (HLM), more than in 74% 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
Without a car: one household in five, against 11% in the median compared French town. Households in social housing make up 12% in the typical compared French town. Locally, 1.4% of homes are second homes. 6.5% of homes stand empty, a lower share than in 53% of compared French towns.
The median resident lives on €25,120 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.
Living standards centre on €25,120 a year per consumption unit: lower than in 59% of compared French towns. Poverty touches 17.0% of residents.
Households headed by a retired person: 21%, a lower share than 93% 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
Where 9.4% of households are headed by a manager or professional in the typical compared French town, Beaumont-sur-Oise has 12%. The share of households headed by a retired person in the typical compared French town is 32%. About one in seven: that is how common households headed by a manual worker are in Beaumont-sur-Oise (14%).
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A higher share of immigrants than 91% of compared French towns, at 19%
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.
By its share of foreign nationals (14%), Beaumont-sur-Oise is above 90% of compared French towns. The median compared commune in Val-d'Oise has 16%; immigrants here make up a share higher than in 91% of compared French towns. Immigrants: 6.5% in the typical compared French town, for comparison.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Beaumont-sur-Oise ranks above 94% of compared French towns on single residents: 36%
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 37% in Beaumont-sur-Oise. Single residents: 25% in the typical compared French town, for comparison.
In Beaumont-sur-Oise, 20% of adults out of school have no qualification, more than in 55% 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
Graduates of higher education: 31% of the total. On average, 19% of adults out of school have no qualification in the typical compared French town.
The 4th youngest of 41 French towns of 10,051 to 10,395 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.
The youngest is Serris (33.5), the oldest Mazamet (51.2).
Beaumont-sur-Oise sits below 4 of its 6 closest neighbors on median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Beaumont-sur-Oise | 36.4 | 14% | 1.4% | 19% |
| Persan 14,359 · 1 mi | 32.9 | 10% | 0.3% | 27% |
| Bernes-sur-Oise 2,684 · 1.3 mi | 37.8 | 14% | 0.4% | 15% |
| Presles 4,017 · 2 mi | 44.3 | 19% | 1.1% | 8.2% |
| Bruyères-sur-Oise 4,921 · 2.2 mi | 35.2 | 9.7% | 0.6% | 13% |
| Champagne-sur-Oise 5,036 · 2.4 mi | 39.3 | 15% | 1% | 9.2% |
| Chambly 9,959 · 2.6 mi | 40.1 | 17% | 0.9% | 8.6% |
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 Beaumont-sur-Oise
What is the population of Beaumont-sur-Oise?
10,232 at INSEE’s 2023 census, 9% more than in 2012 (9,418).
How old are Beaumont-sur-Oise’s residents?
The median age is 36.4, younger than 93% of compared French towns. 25% are under 18 and 14% 65 or older.
How many second homes are there in Beaumont-sur-Oise?
65, with occasional dwellings: 1.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Beaumont-sur-Oise?
INSEE counts 1,910 immigrants (born abroad, not French at birth), 19% of residents, and 1,410 foreign nationals (14%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Beaumont-sur-Oise?
€25,120 a year per consumption unit in 2023 (median of compared French towns €25,970); 17.0% 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.