35% of households are couples with children, a share 92% of compared French towns don’t reach
Against a figure of 9.4% in the typical compared French town, the share of households headed by a manager or professional in Balagny-sur-Thérain comes in at 4.1%. Locally, 17% of residents are 65 or over. Nearly one in ten homes are flats, fewer than in 90% of compared French towns. The town counted 1,628 residents and 690 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 Balagny-sur-Thérain
A town of families
35% of households are couples with children and 8% single parents with children; 19% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Balagny-sur-Thérain has grown +14%, faster than 80% 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 first five years brought +21%; the six to 2023, −6%. For comparison, the median compared French town changed +5% and the median Oise town +2%.
8.2% of residents are 15 to 24, fewer than in 91% 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
■ Balagny-sur-Thérain 40.3. The median compared French town: 44.
Half of Balagny-sur-Thérain’s residents are under 40.3, younger than in 77% of compared French towns. Typically, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
One-person households make up 27% in Balagny-sur-Thérain, less than in 88% 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 Oise median and the France median
Living alone · share
With single-parent households at 8%, Balagny-sur-Thérain is behind four fifths of compared French towns on that count. The usual figure: just over a third of households are one person living alone in the typical compared French town. On average, 2.4 people share a household.
4.3% of homes stand empty, fewer than in 84% 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
One in ten households rent social housing (HLM), against 12% in the typical compared French town. Against that, 6.7% of homes stand empty in the typical compared French town. The share of households without a car stands at 7.8%. On second homes, Balagny-sur-Thérain sits lower than 71% of compared French towns: 1.2%.
At the median, €25,740 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 Balagny-sur-Thérain’s residents live in households with a standard of living below €25,740 a year per consumption unit, and half above: lower than in 52% of compared French towns.
Balagny-sur-Thérain sits below 69% of compared French towns for households headed by a retired person (29%)
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 manual worker make up 17%, against 14% in the typical compared French town. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Only 2.2% of residents are immigrants in Balagny-sur-Thérain
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 (1.4%), Balagny-sur-Thérain is below 88% of compared French towns. The median compared commune in Oise has 7.4%; immigrants here make up a share lower than in 90% of compared French towns. As a yardstick, 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.
Balagny-sur-Thérain sits below 84% of compared French towns for single residents (21%)
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 figure for married residents is 48% in Balagny-sur-Thérain and 43% in the typical compared French town. Against that, 25% of residents 15 and over are single in the typical compared French town.
A smaller share of graduates of higher education than 85% of compared French towns: 20%
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
Against a figure of 19% in the typical compared French town, the share of adults with no qualification in Balagny-sur-Thérain comes in at 26%. The comparison figure for graduates of higher education is 30% in the typical compared French town.
Among 41 French towns of 1,628 to 2,582 people, the 4th 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
2 in 6 nearby towns have a higher median age than Balagny-sur-Thérain
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Balagny-sur-Thérain | 40.3 | 17% | 1.2% | 2.2% |
| Bury 2,838 · 1.2 mi | 42.9 | 20% | 1.8% | 4.1% |
| Mouy 5,319 · 1.7 mi | 39.9 | 18% | 1.6% | 5.8% |
| Cires-lès-Mello 3,978 · 2 mi | 39.9 | 19% | 3.1% | 6% |
| Laigneville 4,926 · 5 mi | 37.3 | 16% | 0.6% | 11% |
| Cauffry 2,649 · 5 mi | 41.5 | 19% | 0.5% | 8.6% |
| Montataire 14,257 · 5.1 mi | 34.5 | 13% | 0.4% | 26% |
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 Balagny-sur-Thérain
What is the population of Balagny-sur-Thérain?
1,628 at INSEE’s 2023 census, 14% more than in 2012 (1,424).
How old are Balagny-sur-Thérain’s residents?
The median age is 40.3, younger than 77% of compared French towns. 23% are under 18 and 17% 65 or older.
How many second homes are there in Balagny-sur-Thérain?
9, with occasional dwellings: 1.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Balagny-sur-Thérain?
INSEE counts 35 immigrants (born abroad, not French at birth), 2.2% of residents, and 22 foreign nationals (1.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Balagny-sur-Thérain?
€25,740 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 9, 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.