In Galluis, 40% of households are couples with children, more than in 99% of compared French towns
In Galluis, 14% of residents are 65 or over, beside 22% in the typical compared French town. About one in 25: that is how common households without a car are in Galluis (4%). Households headed by a retired person are rarer here than in 92% of compared French towns. The 2023 Census put the town’s population at 1,298, in 510 households.
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 Galluis
A town of families
40% of households are couples with children and 9.8% single parents with children; 21% of residents are under 15. Households ↓
Many graduates
54% of residents 15 and over who have left education hold a diploma above the bac, 19% a master’s or more (bac+5). Qualifications ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Galluis grew +14% from 2012 to 2023, faster than 80% 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
Over those years, the median Yvelines town changed +7% and the median compared French town +5%.
Galluis is younger than 71% of compared French towns: a median age of 41.2
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Galluis 41.2. The median compared French town: 44.
Residents aged 15 to 24 make up about one in nine here (11%).
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Yvelines 51.6%, France 51.8%.
In Galluis, 25% of households are one person living alone, fewer than in 95% 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 Yvelines median and the France median
Living alone · share
There are 2.6 people in the average household. In the typical compared French town, one-person households come to 35%. Nothing unusual on single-parent households: 9.8%, close to the figure in the typical compared French town.
Below 96% of compared French towns: 4.8% of homes are flats
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
3.7% of homes are second homes; in the typical compared French town the figure is 2.1%. Typically, 30% of homes are flats in the typical compared French town. On the census count, 6.6% of homes stand empty. Households in social housing are rarer here than in 99% of compared French towns.
Per consumption unit, the median standard of living is €35,080 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.
At €35,080 a year per consumption unit, the median standard of living here is higher than in 96% of compared French towns.
Households headed by a manual worker make up 3.9% in Galluis, less than in 98% 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
The share of households headed by a manager or professional tops 91% of compared French towns: 23%. Elsewhere, 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).
Galluis: 6% of residents are foreign nationals, above 64% 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.
Immigrants make up a share higher than in 54% of compared French towns; the median compared commune in Yvelines has 15%. As a yardstick, 4.3% of residents are foreign nationals in the typical compared French town. Locally, 7% of residents are immigrants.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Galluis ranks above 67% of compared French towns on married residents: 45%
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
Single residents: 24%, below 65% of compared French towns. Married residents: 43% in the typical compared French town, for comparison.
Above 95% of compared French towns: 54% of adults out of school hold a higher-education qualification
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
Compared with 19% in the typical compared French town, 10% of adults out of school have no qualification here. To put it in context, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (1,298 to 2,582 people), the 6th 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Among its 6 nearest neighbors, 5 are older than Galluis
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Galluis | 41.2 | 14% | 3.7% | 7% |
| La Queue-les-Yvelines 2,629 · 1.3 mi | 41.3 | 21% | 2.8% | 9.4% |
| Montfort-l'Amaury 2,779 · 1.6 mi | 53.5 | 32% | 6.3% | 8.7% |
| Garancières 2,621 · 2.4 mi | 42.6 | 18% | 6% | 6.1% |
| Villiers-Saint-Frédéric 3,395 · 4.4 mi | 40.5 | 18% | 1.9% | 8.3% |
| Neauphle-le-Château 3,250 · 5.1 mi | 42.7 | 18% | 3.3% | 7.7% |
| Jouars-Pontchartrain 6,039 · 5.1 mi | 42.2 | 18% | 2.7% | 7% |
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 Galluis
What is the population of Galluis?
1,298 at INSEE’s 2023 census, 14% more than in 2012 (1,138).
How old are Galluis’ residents?
The median age is 41.2, younger than 71% of compared French towns. 25% are under 18 and 14% 65 or older.
How many second homes are there in Galluis?
21, with occasional dwellings: 3.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Galluis?
INSEE counts 91 immigrants (born abroad, not French at birth), 7% of residents, and 78 foreign nationals (6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Galluis?
€35,080 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 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.