Photo: Bichot from Paris · CC BY-SA 3.0Older than 96% of compared French towns: half of Cassis is over 56.4
Households headed by a retired person: 45%, above 93% of compared French towns. At the 2023 Census Cassis was home to 6,661 people in 3,540 households. Flats: 69% of the total. 16% of households are couples with children, fewer than in 87% of compared French towns.
Throughout this page, the Bouches-du-Rhône 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 Cassis
One home in three is a second home
The census counted 2,240 second homes and occasional dwellings in Cassis, 36% of its 6,190 homes: higher than in 96% of compared French towns. 21% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
An older town
Half of Cassis’ residents are under 56.4 and half over; the median of compared French towns is 44. 37% are 65 or older (France median 22%), 11% 80 or older. Ages ↓
Fewer residents than in 2012
Cassis had 7,560 residents at the 2012 census and 6,661 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.
36% of homes are second homes, more than in 96% 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
Households in social housing: 7.6% here and 12% in the typical compared French town. As a reference point, 2.1% of homes are second homes in the typical compared French town. About one in seven: that is how common households without a car are in Cassis (15%).
Cassis changed by −12% 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
The median Bouches-du-Rhône town changed +6% and the median compared French town +5%; here the first five years brought −5% and the next six −7%.
Residents aged 65 and over make up 37% in Cassis, more than in 96% 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
■ Cassis 56.4. The median compared French town: 44.
With residents aged 15 to 24 at 7%, Cassis is behind 97% of compared French towns on that count. By way of comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
54% women, 46% men
About 86 men for every 100 women. Median share of women: Bouches-du-Rhône 51.9%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Cassis: 45% of households are one person living alone, above 83% of compared French towns
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 Bouches-du-Rhône median and the France median
Living alone · share
In the typical compared French town, the share of single-parent households is 10%; Cassis has 9%. Across the comparison, just over a third of households are one person living alone in the typical compared French town. Households here average 1.9 people each.
€31,350 a year: the median standard of living
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.
Half of Cassis’ residents live in households with a standard of living below €31,350 a year per consumption unit, and half above: higher than in 89% of compared French towns. Living below the poverty line: 13.0% of residents.
Households headed by a manual worker make up 6.2% in Cassis, less than in 93% 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
The share of households headed by a manager or professional is 12%, against 9.4% in the typical compared French town. Households headed by a manual worker make up 14% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A higher share of immigrants than 61% of compared French towns, at 8.2%
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.
The median compared commune in Bouches-du-Rhône has 6.3%; immigrants here make up a share higher than in 61% of compared French towns. Immigrants make up 6.5% in the typical compared French town. Census figures put foreign nationals at 4.9% in Cassis.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Cassis sits below 84% of compared French towns for single residents (21%)
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 43% in the typical compared French town, the share of married residents in Cassis comes in at 46%. In the typical compared French town, the share of single residents is 25%.
Cassis sits above 79% of compared French towns for graduates of higher education (40%)
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
17% of adults out of school have no qualification, against 19% in the typical compared French town. In the typical compared French town, graduates of higher education come to 30%.
41 French towns of 6,584 to 6,734 people: this is the 4th 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.
At the ends of the range sit Chasse-sur-Rhône (36.3), the youngest, and Châtelaillon-Plage (59.8), the oldest.
No nearby town is as old as Cassis
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cassis | 56.4 | 37% | 36% | 8.2% |
| Carnoux-en-Provence 6,873 · 2.7 mi | 47.3 | 26% | 7.4% | 9.2% |
| Roquefort-la-Bédoule 5,798 · 3.2 mi | 47.3 | 28% | 3.7% | 5.7% |
| La Penne-sur-Huveaune 6,605 · 4.2 mi | 45.4 | 23% | 1.6% | 6.8% |
| La Ciotat 38,477 · 4.3 mi | 49.9 | 29% | 18% | 7.4% |
| Ceyreste 4,863 · 4.7 mi | 49.1 | 25% | 5.9% | 3.6% |
| Aubagne 47,529 · 5.1 mi | 44.5 | 23% | 1.2% | 10% |
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 Cassis
What is the population of Cassis?
6,661 at INSEE’s 2023 census, 12% fewer than in 2012 (7,560).
How old are Cassis’ residents?
The median age is 56.4, older than 96% of compared French towns. 12% are under 18 and 37% 65 or older.
How many second homes are there in Cassis?
2,240, with occasional dwellings: 36% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cassis?
INSEE counts 540 immigrants (born abroad, not French at birth), 8.2% of residents, and 330 foreign nationals (4.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cassis?
€31,350 a year per consumption unit in 2023 (median of compared French towns €25,970); 13.0% 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.