Photo: Clicsouris · CC BY-SA 3.0Marly-la-Ville sits above 99% of compared French towns for couples with children (40%)
Empty homes: 4.2%, below 85% of compared French towns. 8.1% of households have no car. On households headed by a retired person, Marly-la-Ville sits lower than 78% of compared French towns: 27%. At the 2023 Census, 6,022 people lived in the town, in 2,240 households.
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 Marly-la-Ville
A town of families
40% of households are couples with children and 12% single parents with children; 22% of residents are under 15. Households ↓
A young town
Half of Marly-la-Ville’s residents are under 38.6 and half over; the median of compared French towns is 44. 22% are under 15 and 15% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Marly-la-Ville has grown +9%, faster than 66% 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
From 2012 to 2017 the population moved +3%, and from 2017 to 2023 +6%; the median compared French town changed +5% and the median Val-d'Oise town +8%.
A median age of 38.6: Marly-la-Ville is younger than 86% 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
■ Marly-la-Ville 38.6. The median compared French town: 44.
Set against 22% in the typical compared French town, 15% of residents are 65 or over in Marly-la-Ville.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Val-d'Oise 51.5%, France 51.8%.
A smaller share of one-person households than 94% of compared French towns: 25%
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
Set against 10% in the typical compared French town, 12% of households are single parents in Marly-la-Ville. For comparison, 35% of households are one person living alone in the typical compared French town.
21% of homes are flats, below 66% 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: 1% here and 2.1% in the typical compared French town. For comparison, 30% of homes are flats in the typical compared French town. 11% of households rent social housing (HLM), or about one in nine.
€29,220 a year is the median standard of living here
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 €29,220 a year per consumption unit and half below; the level is higher than in 80% of compared French towns. As for poverty, 9.0% of residents are below the line.
Households headed by a manager or professional make up 15% in Marly-la-Ville, more than in 77% 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
In Marly-la-Ville, 13% of households are headed by a manual worker. The comparison figure for households headed by a manager or professional is 9.4% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Marly-la-Ville: 12% of residents are immigrants, above 79% 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.
8.6% of residents are foreign nationals, against 4.3% in the typical compared French town. Immigrants make up 6.5% 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.
More married residents than 72% of compared French towns: 46%
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 28% of residents 15 and over are single, where the figure in the typical compared French town is 25%. In the typical compared French town, married residents come to 43%.
34% of adults out of school hold a higher-education qualification, a share 62% of compared French towns don’t reach
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
17% of adults out of school have no qualification, against 19% in the typical compared French town. The share of graduates of higher education in the typical compared French town is 30%.
The 10th youngest of 41 French towns of 5,964 to 6,087 people
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 La Verrière (35.4), the youngest, and Vaison-la-Romaine (56.6), the oldest.
Marly-la-Ville sits below 2 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 |
|---|---|---|---|---|
| Marly-la-Ville | 38.6 | 15% | 1% | 12% |
| Fosses 10,570 · 0.8 mi | 36.1 | 13% | 0.8% | 21% |
| Survilliers 4,091 · 1.8 mi | 35.6 | 13% | 1.2% | 14% |
| Puiseux-en-France 3,765 · 1.9 mi | 38.7 | 14% | 0.6% | 14% |
| La Chapelle-en-Serval 3,084 · 2.7 mi | 38.2 | 12% | 1.9% | 8.6% |
| Louvres 12,560 · 2.8 mi | 35.8 | 12% | 1% | 21% |
| Saint-Witz 2,724 · 2.9 mi | 40.9 | 16% | 0.9% | 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 Marly-la-Ville
What is the population of Marly-la-Ville?
6,022 at INSEE’s 2023 census, 9% more than in 2012 (5,531).
How old are Marly-la-Ville’s residents?
The median age is 38.6, younger than 86% of compared French towns. 26% are under 18 and 15% 65 or older.
How many second homes are there in Marly-la-Ville?
23, with occasional dwellings: 1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Marly-la-Ville?
INSEE counts 750 immigrants (born abroad, not French at birth), 12% of residents, and 520 foreign nationals (8.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Marly-la-Ville?
€29,220 a year per consumption unit in 2023 (median of compared French towns €25,970); 9.0% 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 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.