Half of Liancourt is under 38.4, younger than 87% of compared French towns
By its share of single-parent households (16%), Liancourt is above 97% of compared French towns. Locally, 5.9% of households are headed by a manager or professional. 9.4% of homes stand empty, more than in 75% of compared French towns. Census day 2023: 6,785 residents and 2,730 households here.
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 Liancourt
Fewer residents than in 2012
Liancourt had 7,245 residents at the 2012 census and 6,785 in 2023, down 6%: slower growth than in 92% of compared French towns. Population ↓
A young town
Half of Liancourt’s residents are under 38.4 and half over; the median of compared French towns is 44. 18% are under 15 and 17% are 65 or older. Ages ↓
Social housing
28% of households rent from a social landlord (HLM), 22% rent privately and 47% own their home. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−6% since 2012: slower than 92% 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
In two steps, −5% to 2017 and −1% after, the town’s change compares with +5% for the median compared French town and +2% in Oise.
Residents aged 65 and over: 17%, a lower share 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
■ Liancourt 38.4. The median compared French town: 44.
12% of residents are 15 to 24 (typical compared French town: 11%). As a reference point, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
In Liancourt, 38% of households are one person living alone, more than in 64% 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 Oise median and the France median
Living alone · share
Each household has 2.2 people on average. In the typical compared French town, the share of one-person households is 35%. Nothing unusual on couples with children: 25%, close to the figure in the typical compared French town.
Households in social housing make up 28% in Liancourt, more than in 91% of compared French towns
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 flats (49%), Liancourt is above 73% of compared French towns. For households in social housing, the comparison in the typical compared French town is 12%. 0.9% of homes are second homes. More households without a car than in just over three fifths of compared French towns: 13%.
At the median, €23,280 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.
The midpoint of living standards here is €23,280 a year per consumption unit, lower than in 79% of compared French towns. Living below the poverty line: 19.0% of residents.
In Liancourt, 28% of households are headed by a retired person, fewer than in 72% 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
Households headed by a manual worker: 17%, above 70% of compared French towns. On average, nearly a third of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
More immigrants than 79% of compared French towns: 12%
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.
Where 4.3% of residents are foreign nationals in the typical compared French town, Liancourt has 9.7%. The benchmark for immigrants in the typical compared French town: 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents: 33%, a lower share than 95% 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: 35%, above 93% of compared French towns. On average, 43% of residents 15 and over are married in the typical compared French town.
Liancourt ranks above 86% of compared French towns on adults with no qualification: 28%
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 figure for graduates of higher education is 24% in Liancourt and 30% in the typical compared French town. The share of adults with no qualification in the typical compared French town is 19%.
Among 41 French towns of 6,717 to 6,854 people, the 7th 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.
Merville is the youngest (36.9); Nyons the oldest (60.6).
Of the 6 towns nearest Liancourt, 3 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 |
|---|---|---|---|---|
| Liancourt | 38.4 | 17% | 0.9% | 12% |
| Rantigny 2,524 · 1.1 mi | 39.9 | 18% | 0.7% | 8.8% |
| Cauffry 2,649 · 1.4 mi | 41.5 | 19% | 0.5% | 8.6% |
| Laigneville 4,926 · 2.3 mi | 37.3 | 16% | 0.6% | 11% |
| Villers-Saint-Paul 6,480 · 2.9 mi | 36.9 | 15% | 0.9% | 18% |
| Breuil-le-Vert 3,183 · 3.2 mi | 45.4 | 23% | 0.7% | 3.7% |
| Nogent-sur-Oise 21,907 · 3.7 mi | 34.8 | 14% | 0.7% | 27% |
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 Liancourt
What is the population of Liancourt?
6,785 at INSEE’s 2023 census, 6% fewer than in 2012 (7,245).
How old are Liancourt’s residents?
The median age is 38.4, younger than 87% of compared French towns. 22% are under 18 and 17% 65 or older.
How many second homes are there in Liancourt?
27, with occasional dwellings: 0.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Liancourt?
INSEE counts 840 immigrants (born abroad, not French at birth), 12% of residents, and 660 foreign nationals (9.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Liancourt?
€23,280 a year per consumption unit in 2023 (median of compared French towns €25,970); 19.0% 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 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.