In Liez, 1.1% of households rent social housing (HLM), fewer than in 99% of compared French towns
Where 2.1% of homes are second homes in the typical compared French town, Liez has 6.1%. Few places have so few empty homes: 2.6% here, fewer than in 97% of compared French towns. At the 2023 Census Liez was home to 385 people in 180 households. 36% of households are headed by a retired person, or about one in three.
Throughout this page, the Aisne 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 Liez
Fewer residents than in 2012
Liez had 421 residents at the 2012 census and 385 in 2023, down 9%: slower growth than in 96% of compared French towns. Population ↓
An older town
Half of Liez’s residents are under 51.4 and half over; the median of compared French towns is 44. 28% are 65 or older (France median 22%), 5.5% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Liez changed by −9% from 2012 to 2023, behind 96% 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
Medians for comparison: +5% across compared French towns, −4% in Aisne. Here the change came as −7% to 2017, then −2% to 2023.
Half of Liez is over 51.4, older than 87% 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
■ Liez 51.4. The median compared French town: 44.
Nearly one in ten residents are 15 to 24, against 11% in the typical compared French town. More residents aged 65 and over than in just over four fifths of compared French towns: 28%.
Women and men · all residents
49% women, 51% men
About 106 men for every 100 women. Median share of women: Aisne 52.5%, France 51.8%.
More couples with children than 64% of compared French towns: 28%
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 Aisne median and the France median
Living alone · share
The share of one-person households trails nearly three fifths of compared French towns: 33%. For comparison, a quarter of households are couples with children in the typical compared French town. A household here holds 2.2 people on average. Single-parent households are rarer here than in 99% of compared French towns.
Households without a car: 8.9%, a lower share than 60% 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
Without a car: one household in 11, against 11% in the median compared French town. Flats are rarer here than in 99% of compared French towns.
Half of residents have a standard of living above €23,570 a year
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 €23,570 a year: lower than in 76% of compared French towns.
In Liez, 22% of households are headed by a manual worker, more than in 91% 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
8.3% of households are headed by a manager or professional, or about one in 12. On average, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Below 98% of compared French towns: 1.3% 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.
4.3% of residents are foreign nationals in the typical compared French town, against 0.8% in Liez. The median compared commune in Aisne has 5.7%; immigrants here make up a share lower than in 98% of compared French towns. On average, 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.
A smaller share of single residents than 98% of compared French towns: 18%
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
Nearly half of residents 15 and over are married, against 43% in the typical compared French town. Single residents: 25% in the typical compared French town, for comparison.
16% of adults out of school hold a higher-education qualification, below 96% 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
Here, 19% of adults out of school have no qualification. The usual figure: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Ranked by age, 11th oldest 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
No nearby town is as old as Liez
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 Liez
What is the population of Liez?
385 at INSEE’s 2023 census, 9% fewer than in 2012 (421).
How old are Liez’s residents?
The median age is 51.4, older than 87% of compared French towns. 16% are under 18 and 28% 65 or older.
How many second homes are there in Liez?
12, with occasional dwellings: 6.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Liez?
INSEE counts 5 immigrants (born abroad, not French at birth), 1.3% of residents, and 3 foreign nationals (0.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Liez?
€23,570 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 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.