Lardy sits above 89% of compared French towns for households headed by a manager or professional (21%)
In the typical compared French town, a quarter of households are couples with children; in Lardy, 32%. This Essonne town counted 5,530 residents and 2,300 households at the 2023 Census. For Lardy, the census puts households in social housing at 5.1%. 16% of residents are 65 or over, fewer than in 86% of compared French towns.
Throughout this page, the Essonne 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.
Lardy changed by −1% from 2012 to 2023, slower than 74% 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
A higher share of residents aged 15 to 24 than 89% of compared French towns, at 13%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Lardy 43.6. The median compared French town: 44.
With a median age of 43.6, Lardy is younger than 53% of compared French towns. Elsewhere, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Essonne 51.3%, France 51.8%.
Lardy sits below 83% of compared French towns for one-person households (29%)
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 Essonne median and the France median
Living alone · share
10% of households are single parents in the typical compared French town, against 12% in Lardy. On average, 2.4 people share a household. Set beside that, just over a third of households are one person living alone in the typical compared French town.
Lardy sits below 69% of compared French towns for flats (20%)
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
Households that moved in under two years ago: 8.1%. Those in their home 30 years or more: 19%. 8.3% of households have no car, fewer than in 64% of compared French towns. There is little gap on second homes: 2.6%, about the same as in the typical compared French town.
A median of €32,110 a year per consumption unit
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 Lardy is €32,110 a year per consumption unit: higher than in 91% of compared French towns. The poverty rate is 5.0%.
A smaller share of households headed by a retired person than 86% of compared French towns: 24%
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 manual worker trails four fifths of compared French towns: 9.4%. The benchmark for households headed by a retired person in the typical compared French town: 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A larger share of immigrants than 62% of compared French towns: 8.3%
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.
Put another way, about one in 20: 5.1% of residents are foreign nationals. Set beside that, 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.
45% of residents 15 and over are married, more than in 63% 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
25% of residents 15 and over are single in the typical compared French town, against 27% in Lardy. Married residents: 43% in the typical compared French town, for comparison.
39% of adults out of school hold a higher-education qualification, more than in 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
Compared with 19% in the typical compared French town, 15% of adults out of school have no qualification here. Across the comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (5,457 to 5,605 people), the 17th 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.
The youngest is Le Port-Marly (37.4), the oldest Penmarch (60.8).
Lardy and its 6 nearest towns: 2 of them are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Lardy | 43.6 | 16% | 2.6% | 8.3% |
| Saint-Vrain 3,089 · 2.6 mi | 44.9 | 24% | 2.1% | 9.3% |
| Marolles-en-Hurepoix 5,708 · 2.9 mi | 41.2 | 18% | 1.1% | 8.4% |
| Boissy-sous-Saint-Yon 3,882 · 3.3 mi | 40.7 | 16% | 2% | 6% |
| Itteville 6,746 · 3.5 mi | 41.3 | 15% | 1.2% | 6.1% |
| Cerny 3,531 · 4 mi | 42.9 | 20% | 3.4% | 7.1% |
| La Norville 4,268 · 4.1 mi | 44.4 | 21% | 1.5% | 9.4% |
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 Lardy
What is the population of Lardy?
5,530 at INSEE’s 2023 census, about the same as in 2012 (5,578).
How old are Lardy’s residents?
The median age is 43.6, younger than 53% of compared French towns. 21% are under 18 and 16% 65 or older.
How many second homes are there in Lardy?
66, with occasional dwellings: 2.6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lardy?
INSEE counts 460 immigrants (born abroad, not French at birth), 8.3% of residents, and 280 foreign nationals (5.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lardy?
€32,110 a year per consumption unit in 2023 (median of compared French towns €25,970); 5.0% 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 October 30, 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.