Below 97% of compared French towns: 18% of households are headed by a retired person
Here 2.2% of households rent social housing (HLM), where the figure in the typical compared French town is 12%. The census found that 3.5% of households have no car in Betz. Half of the town’s residents are under 40.6, younger than in three quarters of compared French towns. The town had 1,100 residents in 430 households at the 2023 Census.
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 Betz
A town of families
33% of households are couples with children and 13% single parents with children; 20% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Betz’s population moved +1% on 2012, less than in 67% 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
Medians for comparison: +5% across compared French towns, +2% in Oise.
Only 15% of residents are 65 or over in Betz
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Betz 40.6. The median compared French town: 44.
Where 11% of residents are 15 to 24 in the typical compared French town, Betz has 12%. As a yardstick, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
A smaller share of one-person households than 93% of compared French towns: 25%
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
Single-parent households: 13%, above 86% of compared French towns. The comparison figure for one-person households is 35% in the typical compared French town. Across Betz, 33% of households are couples with children.
More second homes than 73% of compared French towns: 4.4%
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
By its share of flats (21%), Betz is below nearly two thirds of compared French towns. The wider picture: 2.1% of homes are second homes in the typical compared French town. Of all households, 6.9% moved in during the last two years and 20% have stayed three decades or more. Lower than in 61% of compared French towns: 5.9% of homes stand empty.
A median of €29,360 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.
The midpoint of living standards here is €29,360 a year per consumption unit, higher than in 81% of compared French towns.
Betz sits above 76% of compared French towns for households headed by a manager or professional (15%)
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
13% of households are headed by a manual worker, or about one in eight. The wider picture: 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).
A lower share of immigrants than 65% of compared French towns, at 4.8%
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.
Here 2.9% of residents are foreign nationals, where the figure in the typical compared French town is 4.3%. 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.
Below 66% of compared French towns: 23% of residents 15 and over are single
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
In the typical compared French town, the share of married residents is 43%; Betz has 45%. For comparison, 25% of residents 15 and over are single in the typical compared French town.
A smaller share of adults with no qualification than 72% of compared French towns: 15%
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
30% of adults out of school hold a higher-education qualification. The comparison figure for adults with no qualification is 19% in the typical compared French town.
The 4th youngest of 41 French towns of 1,100 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Betz is younger than 2 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 |
|---|---|---|---|---|
| Betz | 40.6 | 15% | 4.4% | 4.8% |
| Crépy-en-Valois 14,351 · 5.8 mi | 44.8 | 22% | 1.4% | 11% |
| Nanteuil-le-Haudouin 4,258 · 6.5 mi | 37.1 | 13% | 1% | 7.4% |
| Villers-Cotterêts 10,489 · 9 mi | 41.5 | 19% | 1.3% | 12% |
| Saint-Pathus 6,479 · 9.2 mi | 37.4 | 12% | 0.8% | 7.5% |
| Lizy-sur-Ourcq 3,627 · 9.6 mi | 37.6 | 17% | 2.1% | 16% |
| Le Plessis-Belleville 4,009 · 9.7 mi | 37.2 | 14% | 0.9% | 13% |
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 Betz
What is the population of Betz?
1,100 at INSEE’s 2023 census, about the same as in 2012 (1,091).
How old are Betz’s residents?
The median age is 40.6, younger than 75% of compared French towns. 25% are under 18 and 15% 65 or older.
How many second homes are there in Betz?
21, with occasional dwellings: 4.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Betz?
INSEE counts 53 immigrants (born abroad, not French at birth), 4.8% of residents, and 32 foreign nationals (2.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Betz?
€29,360 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.