Photo: VVVCFFrance · CC0Half of Ecquevilly is under 37.4, younger than 90% of compared French towns
By its share of households headed by a retired person (24%), Ecquevilly is below 88% of compared French towns. Census day 2023: 4,279 residents and 1,720 households here. Households in social housing account for 18%. At 40%, the share of flats is higher than in 64% of compared French towns.
Throughout this page, the Yvelines 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 Ecquevilly
Immigrants
INSEE counts 700 immigrants in Ecquevilly (people born abroad who weren’t French at birth, whatever their nationality now): 17% of residents, against 15% for the median compared commune in Yvelines. 13% are foreign nationals. Immigrants and foreign nationals ↓
A young town
Half of Ecquevilly’s residents are under 37.4 and half over; the median of compared French towns is 44. 22% are under 15 and 15% are 65 or older. Ages ↓
A town of families
33% of households are couples with children and 12% single parents with children; 22% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
From 2012 to 2023, Ecquevilly outgrew 61% of compared French towns: +7%
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 65 and over than 91% of compared French towns: 15%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Ecquevilly 37.4. The median compared French town: 44.
At 11%, residents aged 15 to 24 sit close to the figure in the typical compared French town. Measured more widely, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Yvelines 51.6%, France 51.8%.
33% of households are couples with children, a share 88% of compared French towns don’t reach
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 Yvelines median and the France median
Living alone · share
The figure for one-person households is 31% in Ecquevilly and 35% in the typical compared French town. 12% of households are single parents. On average, a quarter of households are couples with children in the typical compared French town.
8.3% of households have no car, fewer than in 65% 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
Little separates the share of second homes here, 1.3%, from the figure in the typical compared French town. In the typical compared French town, the share of households without a car is 11%. Recent arrivals (under two years) make up 8.8% of households; long-stayers (30 years or more) 15%. Lower than in 50% of compared French towns: 6.7% of homes stand empty.
The middle resident’s standard of living: €29,210 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.
The median standard of living in Ecquevilly is €29,210 a year per consumption unit: higher than in 80% of compared French towns. The share living below the poverty line is 10.0%.
Ecquevilly: 19% of households are headed by a manager or professional, above 86% 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
14% of households are headed by a manual worker in the typical compared French town, against 13% in Ecquevilly. Typically, 9.4% of 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).
Ecquevilly: 17% of residents are immigrants, above 90% 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.
Foreign nationals: 13%, above 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.
In Ecquevilly, 28% of residents 15 and over are single, more than in 72% 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
Here, 42% of residents 15 and over are married. The share of single residents in the typical compared French town is 25%.
Graduates of higher education: 39%, a higher share than 76% 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
Adults with no qualification are rarer here than in 52% of compared French towns. As a yardstick, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 4,238 to 4,322 people, the 2nd 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 Nanteuil-le-Haudouin (37.1), the youngest, and Courseulles-sur-Mer (65.3), the oldest.
4 in 6 nearby towns have a higher median age than Ecquevilly
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Ecquevilly | 37.4 | 15% | 1.3% | 17% |
| Morainvilliers 3,120 · 1.7 mi | 43.4 | 16% | 3.1% | 12% |
| Les Mureaux 34,632 · 2.5 mi | 34.3 | 14% | 0.8% | 34% |
| Verneuil-sur-Seine 16,280 · 3 mi | 40.2 | 17% | 1% | 14% |
| Vernouillet 9,699 · 3 mi | 39.5 | 16% | 1.4% | 18% |
| Orgeval 7,252 · 3.1 mi | 41.1 | 16% | 1.7% | 10% |
| Aubergenville 12,723 · 3.2 mi | 36.8 | 13% | 0.7% | 18% |
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 Ecquevilly
What is the population of Ecquevilly?
4,279 at INSEE’s 2023 census, 7% more than in 2012 (3,987).
How old are Ecquevilly’s residents?
The median age is 37.4, younger than 90% of compared French towns. 26% are under 18 and 15% 65 or older.
How many second homes are there in Ecquevilly?
24, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Ecquevilly?
INSEE counts 740 immigrants (born abroad, not French at birth), 17% of residents, and 570 foreign nationals (13%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Ecquevilly?
€29,210 a year per consumption unit in 2023 (median of compared French towns €25,970); 10.0% 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.