A smaller share of flats than 99% of compared French towns: 1.7%
Against a figure of 12% in the typical compared French town, the share of households in social housing in Erchin comes in at 0.4%. 670 residents in 280 households: that is Erchin at the 2023 Census. In Erchin, nearly a quarter of households are one person living alone. The town has fewer households headed by a manager or professional than just over four fifths of compared French towns, at 5.5%.
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 Erchin
Fewer residents than in 2012
Erchin had 757 residents at the 2012 census and 670 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.
Erchin changed by −11% from 2012 to 2023, behind 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 −9% to 2017, then −3% to 2023. Medians for comparison: +5% across compared French towns, ±0% in Nord.
Erchin is older than 81% of compared French towns: a median age of 49.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Erchin 49.5. The median compared French town: 44.
Residents aged 15 to 24: 9.4%, below nearly three quarters of compared French towns. 27% of residents are 65 or over, or about one in four.
Women and men · all residents
49% women, 51% men
About 106 men for every 100 women. Median share of women: Nord 51.9%, France 51.8%.
Erchin ranks above 84% of compared French towns on couples with children: 32%
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
Against a figure of 10% in the typical compared French town, the share of single-parent households in Erchin comes in at 8.8%. Average household size: 2.4 people. Couples with children make up 25% in the typical compared French town.
5.2% of households have no car, below 87% 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
6% of homes stand empty, about the same as in the typical compared French town. The comparison figure for households without a car is 11% in the typical compared French town. The share of second homes stands at 0.9%.
The middle resident’s standard of living: €28,950 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 €28,950 a year: higher than in 78% of compared French towns.
Erchin sits above 76% of compared French towns for households headed by a retired person (38%)
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 make up about one in seven here (14%). Across the comparison, 32% 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).
Immigrants: 1.9%, a lower share than 93% 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.
Foreign nationals: 0.7%, below 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 higher share of married residents than 98% of compared French towns, at 53%
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
Where a quarter of residents 15 and over are single in the typical compared French town, Erchin has 20%. In the typical compared French town, married residents come to 43%.
Erchin ranks below 90% of compared French towns on adults with no qualification: 12%
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 (37%), Erchin is above 72% of compared French towns. Adults with no qualification make up 19% in the typical compared French town.
14th highest median age among 41 French towns of 670 to 2,582
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Erchin is older than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Erchin | 49.5 | 27% | 0.9% | 1.9% |
| Monchecourt 2,516 · 1.8 mi | 39.3 | 19% | 0.9% | 1.1% |
| Masny 3,999 · 1.9 mi | 41.7 | 20% | 0.3% | 4.7% |
| Guesnain 4,635 · 2.4 mi | 42.9 | 24% | 0.1% | 4.4% |
| Auberchicourt 4,626 · 2.8 mi | 42.2 | 21% | 0.6% | 2.3% |
| Dechy 5,338 · 3 mi | 40 | 21% | 0.3% | 5.4% |
| Montigny-en-Ostrevent 4,495 · 3.6 mi | 45.9 | 26% | 0.2% | 4.3% |
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 Erchin
What is the population of Erchin?
670 at INSEE’s 2023 census, 11% fewer than in 2012 (757).
How old are Erchin’s residents?
The median age is 49.5, older than 81% of compared French towns. 20% are under 18 and 27% 65 or older.
How many second homes are there in Erchin?
3, with occasional dwellings: 0.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Erchin?
INSEE counts 13 immigrants (born abroad, not French at birth), 1.9% of residents, and 5 foreign nationals (0.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Erchin?
€28,950 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 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.