A higher share of couples with children than 99% of compared French towns, at 42%
In Bray-et-Lû, 1.2% of households rent social housing (HLM), beside 12% in the typical compared French town. Nearly a fifth of households are headed by a retired person, fewer than in 96% of compared French towns. The 2023 Census put the town’s population at 954, in 330 households. On the census count, 4.2% of homes stand empty.
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 Bray-et-Lû
A town of families
42% of households are couples with children and 7.4% single parents with children; 20% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −1% since 2012, behind 75% 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 median Val-d'Oise town changed +8% and the median compared French town +5%; here the first five years brought −1% and the next six ±0%.
Younger than 77% of compared French towns: half of Bray-et-Lû is under 40.3
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Bray-et-Lû 40.3. The median compared French town: 44.
With residents aged 15 to 24 at 13%, Bray-et-Lû is ahead of 83% of compared French towns on that count. Census figures put residents aged 65 and over at 19% in the town.
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%.
Only 26% of households are one person living alone in Bray-et-Lû
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 here average 2.7 people each. Fewer single-parent households than in 86% of compared French towns: 7.4%. To put it in context, just over a third of households are one person living alone in the typical compared French town.
Flats: 14%, a lower share than 80% 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
Little separates the share of second homes here, 1.5%, from the figure in the typical compared French town. At 8.4%, the share of households without a car is lower than in 64% of compared French towns. Across the comparison, 30% of homes are flats in the typical compared French town.
€27,340 a year is the median standard of living here
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 midpoint of living standards here is €27,340 a year per consumption unit, higher than in 64% of compared French towns.
Above 99% of compared French towns: 27% of households are headed by a manual worker
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
By its share of households headed by a manager or professional (7.6%), Bray-et-Lû is below 62% of compared French towns. For comparison, 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).
Below 66% of compared French towns: 2.9% of residents are foreign nationals
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.
Immigrants make up a share lower than in 53% of compared French towns; the median compared commune in Val-d'Oise has 16%. In the typical compared French town, the share of foreign nationals is 4.3%. For Bray-et-Lû, the census puts immigrants at 6.1%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
30% of residents 15 and over are single, more than in 81% 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
Married residents make up 41%, against 43% in the typical compared French town. For comparison, 25% of residents 15 and over are single in the typical compared French town.
Only 23% of adults out of school hold a higher-education qualification in Bray-et-Lû
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
For Bray-et-Lû, the census puts adults with no qualification at 20%. As a reference point, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
4th lowest median age among 41 French towns of 954 to 2,582
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.
Of the 6 towns nearest Bray-et-Lû, 4 are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Bray-et-Lû | 40.3 | 19% | 1.5% | 6.1% |
| Vexin-sur-Epte 6,015 · 4.1 mi | 42.7 | 19% | 12% | 3.8% |
| Gasny 3,062 · 4.3 mi | 44.3 | 23% | 2% | 4.8% |
| Magny-en-Vexin 5,779 · 6 mi | 41.6 | 18% | 1.5% | 11% |
| Freneuse 4,505 · 7.3 mi | 38.9 | 18% | 4.6% | 15% |
| Bonnières-sur-Seine 5,064 · 8.2 mi | 38.5 | 17% | 1.1% | 14% |
| Vernon 25,290 · 8.8 mi | 40.4 | 20% | 1.4% | 18% |
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 Bray-et-Lû
What is the population of Bray-et-Lû?
954 at INSEE’s 2023 census, 1% fewer than in 2012 (965).
How old are Bray-et-Lû’s residents?
The median age is 40.3, younger than 77% of compared French towns. 25% are under 18 and 19% 65 or older.
How many second homes are there in Bray-et-Lû?
5, with occasional dwellings: 1.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Bray-et-Lû?
INSEE counts 59 immigrants (born abroad, not French at birth), 6.1% of residents, and 28 foreign nationals (2.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Bray-et-Lû?
€27,340 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.