A smaller share of households headed by a manager or professional than 90% of compared French towns: 4.4%
Flats make up 13%, against 30% in the typical compared French town. Census day 2023: 2,604 residents and 1,140 households in Trélon. A fifth of households have no car. On one-person households, Trélon sits higher than just over three quarters of compared French towns: 42%.
Throughout this page, the Nord 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 Trélon
Fewer residents than in 2012
Trélon had 2,974 residents at the 2012 census and 2,604 in 2023, down 12%: slower growth than in 98% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A −12% change since 2012: 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
Between 2012 and 2017 the population moved −4%, then −9% to 2023. Over those years, the median Nord town changed ±0% and the median compared French town +5%.
Half of Trélon is over 44.2, older than 51% 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
■ Trélon 44.2. The median compared French town: 44.
Residents aged 15 to 24 account for 11%. Few places have so few residents aged 65 and over: 22% here, fewer than in 50% of compared French towns.
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Median share of women: Nord 51.9%, France 51.8%.
A lower share of couples with children than 70% of compared French towns, at 21%
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 Nord median and the France median
Living alone · share
Households here average 2.1 people each. In the typical compared French town, the share of couples with children is 25%. More single-parent households than in 72% of compared French towns: 12%.
9.2% of homes stand empty, a share 74% of compared French towns don’t reach
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
One in ten households arrived within the last two years, while 21% have stayed 30 years or more. At 2.1%, the share of second homes is lower than in just over half of compared French towns. Empty homes make up 6.7% in the typical compared French town. Households in social housing are about as common here as in the typical compared French town, at 12%.
A median of €21,310 a year per consumption unit
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 €21,310 a year per consumption unit, the median standard of living here is lower than in 92% of compared French towns. Some 22.0% of residents fall below the poverty line.
23% of households are headed by a manual worker, a share 93% of compared French towns don’t reach
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 a third of households are headed by a retired person, against 32% in the typical compared French town. Measured more widely, 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).
More foreign nationals than 59% of compared French towns: 5.3%
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.
Immigrants: 5.9% of the total. That is lower than in 55% of compared French towns; the median compared commune in Nord has 4.1%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A lower share of married residents than 92% of compared French towns, at 34%
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
Against a figure of 25% in the typical compared French town, the share of single residents in Trélon comes in at 34%. The share of married residents in the typical compared French town is 43%.
Trélon ranks above 96% of compared French towns on adults with no qualification: 33%
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
By its share of graduates of higher education (17%), Trélon is below 93% of compared French towns. Adults with no qualification make up 19% in the typical compared French town.
41 French towns of 2,580 to 2,628 people: this is the 20th oldest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Bourguébus is the youngest (34.6); Longeville-sur-Mer the oldest (62.9).
Every neighbor is younger than Trélon
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trélon | 44.2 | 22% | 2.1% | 5.9% |
| Fourmies 11,449 · 3.7 mi | 42.5 | 23% | 0.9% | 2.6% |
| Sains-du-Nord 2,755 · 4.7 mi | 43.3 | 24% | 2.3% | 2.3% |
| Anor 3,099 · 4.7 mi | 41.3 | 21% | 3% | 6.6% |
| Wignehies 2,804 · 5.2 mi | 42.7 | 24% | 1.5% | 2.1% |
| Avesnes-sur-Helpe 4,012 · 9.1 mi | 42.7 | 21% | 0.9% | 4.6% |
| Hirson 8,469 · 9.5 mi | 43.6 | 24% | 0.9% | 4.4% |
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 Trélon
What is the population of Trélon?
2,604 at INSEE’s 2023 census, 12% fewer than in 2012 (2,974).
How old are Trélon’s residents?
The median age is 44.2, older than 51% of compared French towns. 23% are under 18 and 22% 65 or older.
How many second homes are there in Trélon?
27, with occasional dwellings: 2.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trélon?
INSEE counts 150 immigrants (born abroad, not French at birth), 5.9% of residents, and 140 foreign nationals (5.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trélon?
€21,310 a year per consumption unit in 2023 (median of compared French towns €25,970); 22.0% 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 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.