A higher share of couples with children than 99% of compared French towns, at 42%
Nearly one in ten households are headed by a manager or professional in the typical compared French town, against 3.7% in Lières. On empty homes, Lières sits lower than 70% of compared French towns: 5.3%. Its 140 households held 335 residents at the 2023 Census. Residents aged 65 and over: 20% of the total.
Throughout this page, the Pas-de-Calais 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 Lières
A town of families
42% of households are couples with children and 3.6% single parents with children; 18% of residents are under 15. Households ↓
Fewer residents than in 2012
Lières had 378 residents at the 2012 census and 335 in 2023, down 11%: slower growth than in 98% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Lières has changed by −11%, slower than 98% 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
Here the change came as +1% to 2017, then −12% to 2023.
Younger than 57% of compared French towns: half of Lières is under 43.1
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Lières 43.1. The median compared French town: 44.
9.7% of residents are 15 to 24, against 11% in the typical compared French town.
Women and men · all residents
47% women, 53% men
About 111 men for every 100 women. Median share of women: Pas-de-Calais 52.0%, France 51.8%.
A lower share of single-parent households than 99% of compared French towns, at 3.6%
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 Pas-de-Calais median and the France median
Living alone · share
Set against 35% in the typical compared French town, 26% of households are one person living alone in Lières. In the typical compared French town, single-parent households come to 10%. Average household size: 2.4 people.
Only 9.5% of households have no car in Lières
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
Flats are rarer here than in 99% of compared French towns. Typically, just over one in ten households have no car in the typical compared French town. 30% of households have been in place 30 years or more; 2.9% moved in within the last two years. At 1.3%, the share of second homes is in line with the figure in the typical compared French town.
€25,450 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.
Per consumption unit, half of residents live on more than €25,450 a year: lower than in 55% of compared French towns.
Households headed by a retired person make up 36% in Lières, more than in 71% 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
For Lières, the census puts households headed by a manual worker at 14%. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Lières sits below 98% of compared French towns for immigrants (1.2%)
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.
In the typical compared French town, the share of foreign nationals is 4.3%; Lières has 0.3%. 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.
Single residents: 20%, a lower share than 93% 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
By its share of married residents (48%), Lières is above 85% of compared French towns. The usual figure: 25% of residents 15 and over are single in the typical compared French town.
17% of adults out of school have no qualification, fewer than in 60% 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
Census figures put graduates of higher education at 31% in Lières. For adults with no qualification, the comparison in the typical compared French town is 19%.
Ranked by age, 12th 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Among its 6 nearest neighbors, 3 are older than Lières
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Lières
What is the population of Lières?
335 at INSEE’s 2023 census, 11% fewer than in 2012 (378).
How old are Lières’ residents?
The median age is 43.1, younger than 57% of compared French towns. 23% are under 18 and 20% 65 or older.
How many second homes are there in Lières?
2, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lières?
INSEE counts 4 immigrants (born abroad, not French at birth), 1.2% of residents, and 1 foreign nationals (0.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lières?
€25,450 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 8, 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.