A median age of 48.9: Harly is older than 79% of compared French towns
In Harly, 40% of households are one person living alone, beside 35% in the typical compared French town. The share of households headed by a manager or professional stands at 5.8%. 18% of households rent social housing (HLM), more than in 72% of compared French towns. At the 2023 Census, 1,569 people lived in the town, in 770 households.
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 Harly
Fewer residents than in 2012
Harly had 1,688 residents at the 2012 census and 1,569 in 2023, down 7%: slower growth than in 93% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−7% since 2012: slower than 93% 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 −5%, and from 2017 to 2023 −3%; the median compared French town changed +5% and the median Aisne town −4%.
Residents aged 65 and over make up 29% in Harly, more than in 83% 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
■ Harly 48.9. The median compared French town: 44.
Residents aged 15 to 24: 10%, below 64% of compared French towns. Typically, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 88 men for every 100 women. Median share of women: Aisne 52.5%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Only 19% of households are couples with children in Harly
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
Single-parent households: 12%, above 73% of compared French towns. Elsewhere, a quarter of households are couples with children in the typical compared French town. Each household has 2 people on average.
Above 76% of compared French towns: 17% of households have no car
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
There is little gap on empty homes: 6.1%, about the same as in the typical compared French town. As a yardstick, 11% of households have no car in the typical compared French town. Second homes account for 1.2%. Higher than in 53% of compared French towns: 32% of homes are flats.
The middle resident’s standard of living: €23,750 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.
The midpoint of living standards here is €23,750 a year per consumption unit, lower than in 74% of compared French towns.
More households headed by a retired person than 84% of compared French towns: 40%
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 Harly, the census puts households headed by a manual worker at 14%. 5.8% of the town’s households are headed by a manager or professional, against 9.4% in the median compared French town; 40% by a retired person (32%).
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
4.3% of residents are immigrants, below 70% of compared French towns
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 Harly, 2.9% of residents are foreign nationals, beside 4.3% in the typical compared French town. By way of comparison, 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.
Below 70% of compared French towns: 40% of residents 15 and over are married
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 make up about one in four here (26%). Typically, 43% of residents 15 and over are married in the typical compared French town.
Below 89% of compared French towns: 19% of adults out of school hold a higher-education qualification
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 21% of adults out of school have no qualification, where the figure in the typical compared French town is 19%. The benchmark for graduates of higher education in the typical compared French town: 30%.
The 15th oldest of 41 French towns of 1,569 to 2,582 people
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Every neighbor is younger than Harly
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Harly | 48.9 | 29% | 1.2% | 4.3% |
| Saint-Quentin 52,813 · 1.5 mi | 41.3 | 23% | 1.6% | 9% |
| Gauchy 5,183 · 2.2 mi | 47.7 | 24% | 0.4% | 4% |
| Fresnoy-le-Grand 2,890 · 8.4 mi | 44.1 | 23% | 1.2% | 2.7% |
| Bohain-en-Vermandois 5,605 · 11.6 mi | 41.1 | 21% | 0.8% | 4.9% |
| La Fère 2,796 · 12.7 mi | 39.7 | 21% | 2.3% | 5.6% |
| Ham 4,378 · 12.7 mi | 45.8 | 25% | 1% | 2.8% |
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 Harly
What is the population of Harly?
1,569 at INSEE’s 2023 census, 7% fewer than in 2012 (1,688).
How old are Harly’s residents?
The median age is 48.9, older than 79% of compared French towns. 20% are under 18 and 29% 65 or older.
How many second homes are there in Harly?
10, with occasional dwellings: 1.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Harly?
INSEE counts 68 immigrants (born abroad, not French at birth), 4.3% of residents, and 45 foreign nationals (2.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Harly?
€23,750 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.