Lormaison: 36% of households are couples with children, above 94% of compared French towns
In the typical compared French town, 30% of homes are flats; in Lormaison, 6.7%. Locally, 16% of residents are 65 or over. On households headed by a retired person, Lormaison sits lower than 88% of compared French towns: 23%. 1,247 residents in 500 households: that is Lormaison at the 2023 Census.
Throughout this page, the 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 Lormaison
A town of families
36% of households are couples with children and 12% single parents with children; 18% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower growth than 81% of compared French towns: Lormaison changed by −3% since 2012
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
Here the change came as +2% to 2017, then −5% to 2023.
Older than 52% of compared French towns: half of Lormaison is over 44.3
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Lormaison 44.3. The median compared French town: 44.
11% of residents are 15 to 24.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Oise 51.7%, 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 Oise median and the France median
Living alone · share
In the typical compared French town, the share of single-parent households is 10%; Lormaison has 12%. Each household has 2.5 people on average. The usual figure: just over a third of households are one person living alone in the typical compared French town.
A smaller share of households without a car than 82% of compared French towns: 5.8%
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
The share of second homes trails 85% of compared French towns: 0.9%. At the same time, households in social housing are more common here than in 67% of compared French towns. For comparison, just over one in ten households have no car in the typical compared French town. Across Lormaison, 4.2% of homes stand empty.
At the median, €27,780 a year to live on
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 €27,780 a year per consumption unit, the median standard of living here is higher than in 69% of compared French towns.
Lormaison sits above 85% of compared French towns for households headed by a manual worker (21%)
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
Just over one in ten households are headed by a manager or professional; in the typical compared French town the figure is 9.4%. In the typical compared French town, the share of households headed by a manual worker is 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Lormaison: 6.1% of residents 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.
The median compared commune in Oise has 7.4%; immigrants here make up a share lower than in 54% of compared French towns. 3.5% of residents are foreign nationals, or about one in 29.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
46% of residents 15 and over are married, a share 69% of compared French towns don’t reach
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
In Lormaison, 25% of residents 15 and over are single. The comparison figure for married residents is 43% in the typical compared French town.
Lormaison sits below 79% of compared French towns for graduates of higher education (22%)
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
On adults with no qualification, Lormaison sits higher than 57% of compared French towns: 20%. Across the comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Ranked by age, 16th youngest of 41 French towns this size
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.
Lormaison is older than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Lormaison | 44.3 | 16% | 0.9% | 6.1% |
| Méru 13,897 · 1.8 mi | 36.7 | 15% | 0.7% | 19% |
| Andeville 3,434 · 2.6 mi | 39 | 15% | 1.1% | 6.7% |
| Sainte-Geneviève 3,505 · 4.7 mi | 36.6 | 13% | 1.4% | 5.9% |
| Bornel 4,832 · 5.6 mi | 40.7 | 17% | 1.4% | 6.6% |
| Noailles 2,877 · 6.6 mi | 40.4 | 18% | 1.2% | 4.9% |
| Neuilly-en-Thelle 4,127 · 8.4 mi | 36.7 | 14% | 0.9% | 6.4% |
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 Lormaison
What is the population of Lormaison?
1,247 at INSEE’s 2023 census, 3% fewer than in 2012 (1,283).
How old are Lormaison’s residents?
The median age is 44.3, older than 52% of compared French towns. 22% are under 18 and 16% 65 or older.
How many second homes are there in Lormaison?
5, with occasional dwellings: 0.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lormaison?
INSEE counts 76 immigrants (born abroad, not French at birth), 6.1% of residents, and 43 foreign nationals (3.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lormaison?
€27,780 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 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.