A higher share of couples with children than 95% of compared French towns, at 36%
Against a figure of 9.4% in the typical compared French town, the share of households headed by a manager or professional in Lévis-Saint-Nom comes in at 31%. The 2023 Census put the town’s population at 1,603, in 660 households. Census figures put households without a car at 4% locally. Households in social housing are rarer here than in 99% 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 Lévis-Saint-Nom
A town of families
36% of households are couples with children and 2.3% single parents with children; 17% of residents are under 15. Households ↓
Many graduates
56% of residents 15 and over who have left education hold a diploma above the bac, 26% a master’s or more (bac+5). Qualifications ↓
Fewer residents than in 2012
Lévis-Saint-Nom had 1,690 residents at the 2012 census and 1,603 in 2023, down 5%: slower growth than in 88% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Lévis-Saint-Nom has changed by −5%, slower 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
Older than 76% of compared French towns: half of Lévis-Saint-Nom is over 48.4
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Lévis-Saint-Nom 48.4. The median compared French town: 44.
Set against 11% in the typical compared French town, 8.5% of residents are 15 to 24 in Lévis-Saint-Nom. 25% of residents are 65 or over.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Yvelines 51.6%, France 51.8%.
A smaller share of one-person households than 99% of compared French towns: 21%
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
Average household size: 2.4 people. On average, 35% of households are one person living alone in the typical compared French town. Few places have so few single-parent households: 2.3% here, fewer than in 99% of compared French towns.
Lévis-Saint-Nom sits below 98% of compared French towns for flats (3.4%)
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
By its share of second homes (3.5%), Lévis-Saint-Nom is above 67% of compared French towns. Empty homes are rarer here than in 82% of compared French towns. On average, 30% of homes are flats in the typical compared French town. Of all households, 7.3% moved in during the last two years and 25% have stayed three decades or more.
€38,940 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.
The midpoint of living standards here is €38,940 a year per consumption unit, higher than in 98% of compared French towns.
6.8% of households are headed by a manual worker, below 91% 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
Here just over a third of households are headed by a retired person, where the figure in the typical compared French town is 32%. To put it in context, 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).
6.6% of residents in Lévis-Saint-Nom are immigrants
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.
That is higher than in 51% of compared French towns; the median compared commune in Yvelines has 15%. Foreign nationals account for 4.9%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents: 59%, a higher share than 99% 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
Single residents: 16% here and 25% in the typical compared French town. For comparison, 43% of residents 15 and over are married in the typical compared French town.
Lévis-Saint-Nom ranks above 96% of compared French towns on graduates of higher education: 56%
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: 9.4%, below 97% of compared French towns. For comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 1,603 to 2,582 people: this is the 15th oldest
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.
Every neighbor is younger than Lévis-Saint-Nom
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Lévis-Saint-Nom | 48.4 | 25% | 3.5% | 6.6% |
| Les Essarts-le-Roi 6,831 · 1.1 mi | 43.4 | 20% | 1.3% | 12% |
| Coignières 4,321 · 1.8 mi | 39.6 | 17% | 0.5% | 25% |
| Le Mesnil-Saint-Denis 7,276 · 2.3 mi | 43.2 | 20% | 1.9% | 8.9% |
| La Verrière 5,994 · 2.9 mi | 35.4 | 15% | 0.8% | 26% |
| Maurepas 20,629 · 3 mi | 38.8 | 18% | 1.6% | 17% |
| Le Perray-en-Yvelines 6,480 · 3.7 mi | 46.7 | 22% | 1.2% | 9.6% |
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 Lévis-Saint-Nom
What is the population of Lévis-Saint-Nom?
1,603 at INSEE’s 2023 census, 5% fewer than in 2012 (1,690).
How old are Lévis-Saint-Nom’s residents?
The median age is 48.4, older than 76% of compared French towns. 21% are under 18 and 25% 65 or older.
How many second homes are there in Lévis-Saint-Nom?
25, with occasional dwellings: 3.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lévis-Saint-Nom?
INSEE counts 110 immigrants (born abroad, not French at birth), 6.6% of residents, and 79 foreign nationals (4.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lévis-Saint-Nom?
€38,940 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.