15% of homes are flats, below 78% of compared French towns
In the typical compared French town, nearly a third of households are headed by a retired person; in Trosly-Breuil, 36%. The 2023 Census counted 2,077 residents in 890 households. Put another way, about one in 11: 8.9% of households have no car. Half are older than 44.7, older than 55% of compared French towns.
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.
−2% since 2012, a pace below 78% 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
A smaller share of residents aged 15 to 24 than 67% of compared French towns: 9.8%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Trosly-Breuil 44.7. The median compared French town: 44.
The median age in Trosly-Breuil is 44.7, higher than in 55% of compared French towns. To put it in context, 11% of residents are 15 to 24 in the typical compared French town. Census figures put residents aged 65 and over at 22% locally.
Women and men · all residents
51% women, 49% men
About 95 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
Only 34% of households are one person living alone in Trosly-Breuil
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
Average household size: 2.2 people. As a reference point, just over a third of households are one person living alone in the typical compared French town. More single-parent households than in 59% of compared French towns: 11%. On couples with children, 25% here is much the same as in the typical compared French town.
Households in social housing: 13%, a higher share than 53% 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 household in 11 has no car, against 11% in the median compared French town. Against that, 12% of households rent social housing (HLM) in the typical compared French town. Turnover: nearly one in ten households moved in less than two years ago, and 26% have lived in their home 30 years or more. Compared with other places, second homes are common here: 2.5%, more than in 56% of compared French towns.
€26,870 a year: the median standard of living
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 residents live in households above €26,870 a year per consumption unit and half below; the level is higher than in 60% of compared French towns. Poverty touches 11.0% of residents.
Households headed by a manual worker make up 15% in Trosly-Breuil, more than in 60% 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
About one in 12: that is how common households headed by a manager or professional are in Trosly-Breuil (8.4%). Across the 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).
Trosly-Breuil sits above 59% of compared French towns for immigrants (7.9%)
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.
Where 4.3% of residents are foreign nationals in the typical compared French town, Trosly-Breuil has 5.5%. The median compared commune in Oise has 7.4%; immigrants here make up a share higher than in 59% of compared French towns. By way of comparison, 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.
31% 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 people make up 40% and PACS partners 5.5%, against 43% and 6.1% in the median compared French town; 6.1% are widowed. Single residents make up 25% in the typical compared French town.
Trosly-Breuil ranks above 69% of compared French towns on adults with no qualification: 23%
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
Here, 30% of adults out of school hold a higher-education qualification. The benchmark for adults with no qualification in the typical compared French town: 19%.
41 French towns of 2,077 to 2,582 people: this is the 18th 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Nearby, 2 of 6 towns have older populations than Trosly-Breuil
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trosly-Breuil | 44.7 | 22% | 2.5% | 7.9% |
| Choisy-au-Bac 3,449 · 5.1 mi | 44.9 | 25% | 2.3% | 6.6% |
| Longueil-Annel 2,586 · 6.8 mi | 42 | 20% | 1% | 6.6% |
| Thourotte 4,463 · 7.1 mi | 47.2 | 27% | 0.8% | 6.8% |
| Compiègne 40,761 · 7.3 mi | 37.6 | 19% | 2.2% | 17% |
| Margny-lès-Compiègne 8,677 · 7.3 mi | 37.8 | 16% | 2% | 14% |
| Venette 2,758 · 8 mi | 41.1 | 19% | 1.9% | 7.9% |
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 Trosly-Breuil
What is the population of Trosly-Breuil?
2,077 at INSEE’s 2023 census, 2% fewer than in 2012 (2,118).
How old are Trosly-Breuil’s residents?
The median age is 44.7, older than 55% of compared French towns. 21% are under 18 and 22% 65 or older.
How many second homes are there in Trosly-Breuil?
25, with occasional dwellings: 2.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trosly-Breuil?
INSEE counts 160 immigrants (born abroad, not French at birth), 7.9% of residents, and 120 foreign nationals (5.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trosly-Breuil?
€26,870 a year per consumption unit in 2023 (median of compared French towns €25,970); 11.0% 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.