A larger share of couples with children than 93% of compared French towns: 35%
With households headed by a manager or professional at 27%, Cormeilles-en-Parisis is ahead of 95% of compared French towns on that count. Census day 2023: 27,292 residents and 10,900 households here. The census found that 48% of homes are flats here. Half are older than 38.5, younger than 86% of compared French towns.
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 Cormeilles-en-Parisis
A town of families
35% of households are couples with children and 10% single parents with children; 21% of residents are under 15. Households ↓
Immigrants
INSEE counts 4,500 immigrants in Cormeilles-en-Parisis (people born abroad who weren’t French at birth, whatever their nationality now): 16% of residents, against 16% for the median compared commune in Val-d'Oise. 11% are foreign nationals. Immigrants and foreign nationals ↓
A young town
Half of Cormeilles-en-Parisis’ residents are under 38.5 and half over; the median of compared French towns is 44. 21% are under 15 and 15% are 65 or older. Ages ↓
Growing fast
Cormeilles-en-Parisis had 23,369 residents at the 2012 census and 27,292 in 2023, up 17%: faster growth than in 85% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Cormeilles-en-Parisis grew +17% from 2012 to 2023, faster than 85% 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, +8% in Val-d'Oise. Here the change came as +3% to 2017, then +13% to 2023.
Younger than 86% of compared French towns: half of Cormeilles-en-Parisis is under 38.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cormeilles-en-Parisis 38.5. The median compared French town: 44.
In the typical compared French town, the share of residents aged 15 to 24 is 11%; Cormeilles-en-Parisis has 12%. Residents aged 65 and over are rarer here than in 90% of compared French towns.
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%.
Cormeilles-en-Parisis ranks below 71% of compared French towns on one-person households: 31%
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
On average, 2.5 people share a household. The wider picture: just over a third of households are one person living alone in the typical compared French town. At 10%, single-parent households sit close to the figure in the typical compared French town.
15% of households have no car, more than in 69% 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
Second homes are about as common here as in the typical compared French town: 1.4%. As a yardstick, 11% of households have no car in the typical compared French town. Turnover: one in ten households moved in less than two years ago, and 13% have lived in their home 30 years or more.
Half of residents have a standard of living above €32,450 a year
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.
Living standards centre on €32,450 a year per consumption unit: higher than in 92% of compared French towns. One measure of hardship: 10.6% of residents are below the poverty line.
In Cormeilles-en-Parisis, 22% of households are headed by a retired person, fewer than in 92% 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
Where 14% of households are headed by a manual worker in the typical compared French town, Cormeilles-en-Parisis has 8.9%. As a yardstick, 32% of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
More immigrants than 88% of compared French towns: 16%
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.
4.3% of residents are foreign nationals in the typical compared French town, against 11% in Cormeilles-en-Parisis. In the typical compared French town, immigrants come to 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Above 64% of compared French towns: 45% of residents 15 and over are married
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
Set against 25% in the typical compared French town, 27% of residents 15 and over are single in Cormeilles-en-Parisis. The share of married residents in the typical compared French town is 43%.
A larger share of graduates of higher education than 90% of compared French towns: 46%
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
In the typical compared French town, the share of adults with no qualification is 19%; Cormeilles-en-Parisis has 14%. Graduates of higher education: 30% in the typical compared French town, for comparison.
Ranked by age, 16th youngest of 41 French towns this size
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Grigny is the youngest (31); Biarritz the oldest (55.2).
Cormeilles-en-Parisis sits below 3 of its 6 closest neighbors on median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cormeilles-en-Parisis | 38.5 | 15% | 1.4% | 16% |
| La Frette-sur-Seine 4,570 · 1.1 mi | 42.4 | 18% | 1.3% | 12% |
| Montigny-lès-Cormeilles 22,457 · 2 mi | 34.9 | 13% | 0.7% | 24% |
| Sartrouville 52,763 · 2.1 mi | 38.5 | 15% | 0.9% | 24% |
| Franconville 37,754 · 2.1 mi | 36.6 | 15% | 0.9% | 19% |
| Argenteuil 106,130 · 2.4 mi | 36.4 | 14% | 0.9% | 32% |
| Maisons-Laffitte 23,093 · 2.6 mi | 41.6 | 18% | 3.5% | 16% |
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 Cormeilles-en-Parisis
What is the population of Cormeilles-en-Parisis?
27,292 at INSEE’s 2023 census, 17% more than in 2012 (23,369).
How old are Cormeilles-en-Parisis’ residents?
The median age is 38.5, younger than 86% of compared French towns. 25% are under 18 and 15% 65 or older.
How many second homes are there in Cormeilles-en-Parisis?
170, with occasional dwellings: 1.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cormeilles-en-Parisis?
INSEE counts 4,460 immigrants (born abroad, not French at birth), 16% of residents, and 3,100 foreign nationals (11%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cormeilles-en-Parisis?
€32,450 a year per consumption unit in 2023 (median of compared French towns €25,970); 10.6% 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 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.