Above 93% of compared French towns: 35% of households are couples with children
Residents aged 65 and over make up 16%, against 22% in the typical compared French town. The 2023 Census counted 6,482 residents in 2,520 households. Here, nearly one in ten homes stand empty. Households headed by a retired person are rarer here than in 92% 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.
What stands out about the people of Longpont-sur-Orge
A town of families
35% of households are couples with children and 12% single parents with children; 20% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−2% since 2012: slower than 76% 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 −4%, and from 2017 to 2023 +2%; the median compared French town changed +5% and the median Essonne town +6%.
Half of Longpont-sur-Orge is under 39.7, younger than 81% 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
■ Longpont-sur-Orge 39.7. The median compared French town: 44.
In the typical compared French town, the share of residents aged 15 to 24 is 11%; Longpont-sur-Orge has 12%.
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Median share of women: Essonne 51.3%, France 51.8%.
Below 91% of compared French towns: 26% of households are one person living alone
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
Set against 10% in the typical compared French town, 12% of households are single parents in Longpont-sur-Orge. One-person households: 35% in the typical compared French town, for comparison. Households average 2.5 people.
A smaller share of households without a car than 79% of compared French towns: 6.2%
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
Without a car: one household in 16, against 11% in the median compared French town. Locally, 0.8% of homes are second homes. Flats are more common here than in 52% of compared French towns.
A median of €31,410 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.
Half of residents live in households above €31,410 a year per consumption unit and half below; the level is higher than in 90% of compared French towns. The share living below the poverty line is 13.0%.
Above 87% of compared French towns: 20% of households are headed by a manager or professional
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
13% of households are headed by a manual worker, or about one in eight. As a yardstick, nearly one in ten 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).
A higher share of immigrants than 76% of compared French towns, at 11%
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; in the typical compared French town the figure is 4.3%. The usual figure: 6.5% of residents are immigrants in the typical compared French town. The median compared commune in Essonne has 13%; immigrants here make up a share higher than in just over three quarters of compared French towns.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Longpont-sur-Orge ranks above 65% 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
Put another way, about one in four: 26% of residents 15 and over are single. In the typical compared French town, married residents come to 43%.
Longpont-sur-Orge ranks above 88% of compared French towns on graduates of higher education: 45%
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
The share of adults with no qualification trails 89% of compared French towns: 12%. By way of comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (6,442 to 6,537 people), the 5th 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.
Ages run from 36.5 in Vezin-le-Coquet to 58 in Gueugnon.
Around Longpont-sur-Orge, 1 of 6 towns have a higher 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 |
|---|---|---|---|---|
| Longpont-sur-Orge | 39.7 | 16% | 0.8% | 11% |
| Montlhéry 9,772 · 0.8 mi | 34.7 | 13% | 1.8% | 16% |
| Villiers-sur-Orge 4,545 · 1.1 mi | 42.7 | 17% | 0.7% | 8.6% |
| La Ville-du-Bois 8,161 · 1.4 mi | 38.2 | 14% | 2.2% | 13% |
| Saint-Michel-sur-Orge 21,776 · 1.5 mi | 36.9 | 15% | 1.2% | 22% |
| Linas 7,987 · 1.6 mi | 33.8 | 12% | 0.7% | 16% |
| Ballainvilliers 4,904 · 1.9 mi | 38.5 | 16% | 0.5% | 9.2% |
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 Longpont-sur-Orge
What is the population of Longpont-sur-Orge?
6,482 at INSEE’s 2023 census, 2% fewer than in 2012 (6,585).
How old are Longpont-sur-Orge’s residents?
The median age is 39.7, younger than 81% of compared French towns. 24% are under 18 and 16% 65 or older.
How many second homes are there in Longpont-sur-Orge?
22, with occasional dwellings: 0.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Longpont-sur-Orge?
INSEE counts 730 immigrants (born abroad, not French at birth), 11% of residents, and 560 foreign nationals (8.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Longpont-sur-Orge?
€31,410 a year per consumption unit in 2023 (median of compared French towns €25,970); 13.0% 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.