In Couloisy, 23% of households are one person living alone, fewer than in 97% of compared French towns
Second homes: 0.4%, below 98% of compared French towns. Couloisy counted 592 residents and 240 households at the 2023 Census. The share of households without a car stands at 6.8%. Households headed by a manual worker are more common here than in 93% 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.
What stands out about the people of Couloisy
A town of families
34% of households are couples with children and 4.3% single parents with children; 18% of residents are under 15. Households ↓
Growing fast
Couloisy had 499 residents at the 2012 census and 592 in 2023, up 19%: faster growth than in 88% of compared French towns. Population ↓
Empty homes
The census found 31 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +19% change since 2012: faster than 88% 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
In two steps, +8% to 2017 and +9% after, the town’s change compares with +5% for the median compared French town and +2% in Oise.
In Couloisy, 18% of residents are 65 or over, fewer than in 77% 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
■ Couloisy 43.1. The median compared French town: 44.
With a median age of 43.1, Couloisy is younger than 57% of compared French towns. Put another way, about one in nine: 11% of residents are 15 to 24. As a reference point, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Oise 51.7%, France 51.8%.
In Couloisy, 34% of households are couples with children, more than in 90% 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
The share of single-parent households trails 99% of compared French towns: 4.3%. Households average 2.5 people. On average, 25% of households are couples with children in the typical compared French town.
Couloisy: 12% of homes stand empty, above 86% 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
The share of flats trails 83% of compared French towns: 12%. 16% of households rent social housing (HLM), a higher share than in 64% of compared French towns. As a yardstick, 6.7% of homes stand empty in the typical compared French town. Of all households, 7.2% moved in during the last two years and 22% have stayed three decades or more.
€24,480 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.
Per consumption unit, half of residents live on more than €24,480 a year: lower than in 66% of compared French towns.
A lower share of households headed by a manager or professional than 91% of compared French towns, at 4.3%
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
Census figures put households headed by a retired person at 32% in Couloisy. Elsewhere, 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).
Immigrants make up 3.9% in Couloisy, less than in 74% of compared French towns
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.
The share of foreign nationals trails 76% of compared French towns: 2.2%. To put it in context, 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.
45% of residents 15 and over are married, a share 64% of compared French towns don’t reach
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
Compared with 25% in the typical compared French town, 24% of residents 15 and over are single here. The share of married residents in the typical compared French town is 43%.
Graduates of higher education: 20%, a lower share than 87% 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
Against a figure of 19% in the typical compared French town, the share of adults with no qualification in Couloisy comes in at 26%. Across the comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 592 to 2,582 people, the 12th 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.
2 in 6 nearby towns have a higher median age than Couloisy
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Couloisy | 43.1 | 18% | 0.4% | 3.9% |
| Choisy-au-Bac 3,449 · 7.1 mi | 44.9 | 25% | 2.3% | 6.6% |
| Longueil-Annel 2,586 · 8.7 mi | 42 | 20% | 1% | 6.6% |
| Thourotte 4,463 · 8.7 mi | 47.2 | 27% | 0.8% | 6.8% |
| Ribécourt-Dreslincourt 3,871 · 9.3 mi | 40.5 | 18% | 1.2% | 7.3% |
| Compiègne 40,761 · 9.4 mi | 37.6 | 19% | 2.2% | 17% |
| Margny-lès-Compiègne 8,677 · 9.4 mi | 37.8 | 16% | 2% | 14% |
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 Couloisy
What is the population of Couloisy?
592 at INSEE’s 2023 census, 19% more than in 2012 (499).
How old are Couloisy’s residents?
The median age is 43.1, younger than 57% of compared French towns. 23% are under 18 and 18% 65 or older.
How many second homes are there in Couloisy?
1, with occasional dwellings: 0.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Couloisy?
INSEE counts 23 immigrants (born abroad, not French at birth), 3.9% of residents, and 13 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Couloisy?
€24,480 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.