In Cassel, 17% of households are headed by a manager or professional, more than in 83% of compared French towns
10% of households are single parents in the typical compared French town, against 7.4% in Cassel. There were 950 households here at the 2023 Census, home to 2,198 residents. Second homes account for 5.1%. The town has more empty homes than 77% of compared French towns, at 9.7%.
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.
Cassel changed by −4% from 2012 to 2023, behind 84% 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
In two steps, ±0% to 2017 and −4% after, the town’s change compares with +5% for the median compared French town and ±0% in Nord.
Older than 57% of compared French towns: half of Cassel is over 45.1
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cassel 45.1. The median compared French town: 44.
At 11%, the share of residents aged 15 to 24 is in line with the figure in the typical compared French town. Across Cassel, 23% of residents are 65 or over.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Nord 51.9%, France 51.8%.
Cassel ranks above 66% of compared French towns on couples with children: 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 Nord median and the France median
Living alone · share
The typical household size is 2.2 people. The benchmark for couples with children in the typical compared French town: 25%. Across Cassel, 34% of households are one person living alone.
Cassel sits below 72% of compared French towns for flats (18%)
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
Newcomers of less than two years account for nearly one in ten households, residents of 30 years or more for 22%. In the typical compared French town, the share of households in social housing is 12%; Cassel has 11%.
A median of €26,430 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.
Per consumption unit, half of residents live on more than €26,430 a year: higher than in 55% of compared French towns. Residents below the poverty line make up 14.0%.
Cassel sits above 79% of compared French towns for households headed by a manual worker (19%)
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
In Cassel, 29% of households are headed by a retired person, beside 32% in the typical compared French town. For households headed by a manual worker, the comparison in the typical compared French town is 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Below 79% of compared French towns: 3.4% 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.
Foreign nationals: 3%, below 65% of compared French towns. To put it in context, 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.
Fewer married residents than 62% of compared French towns: 41%
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
For Cassel, the census puts single residents at 25%. By way of comparison, 43% of residents 15 and over are married in the typical compared French town.
More graduates of higher education than 59% of compared French towns: 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
Adults with no qualification: 18% of the total. Measured more widely, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 2,198 to 2,582 people, the 20th youngest
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).
A younger town than 2 of the 6 around it: Cassel
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cassel | 45.1 | 23% | 5.1% | 3.4% |
| Steenvoorde 4,332 · 4.1 mi | 45.3 | 25% | 1.5% | 2.1% |
| Wormhout 5,584 · 5.6 mi | 45.4 | 25% | 1.1% | 1.2% |
| Hazebrouck 21,912 · 5.7 mi | 43.3 | 23% | 1% | 3.1% |
| Morbecque 2,573 · 8 mi | 44.5 | 22% | 1.4% | 1.2% |
| Arques 9,431 · 9.4 mi | 43.9 | 21% | 1% | 2.8% |
| Vieux-Berquin 2,628 · 9.6 mi | 42.2 | 19% | 0.8% | 1.1% |
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 Cassel
What is the population of Cassel?
2,198 at INSEE’s 2023 census, 4% fewer than in 2012 (2,287).
How old are Cassel’s residents?
The median age is 45.1, older than 57% of compared French towns. 23% are under 18 and 23% 65 or older.
How many second homes are there in Cassel?
57, with occasional dwellings: 5.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cassel?
INSEE counts 74 immigrants (born abroad, not French at birth), 3.4% of residents, and 66 foreign nationals (3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cassel?
€26,430 a year per consumption unit in 2023 (median of compared French towns €25,970); 14.0% 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 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.