Fewer households in social housing than 99% of compared French towns: 0.8%
Against a figure of 35% in the typical compared French town, the share of one-person households in Cosswiller comes in at 23%. Households without a car: 3.4% of the total. 6.9% of homes are flats, a lower share than in 92% of compared French towns. The town had 610 residents in 260 households at the 2023 census.
Throughout this page, the Bas-Rhin 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.
Cosswiller grew +7% from 2012 to 2023, ahead of 61% 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 +1% to 2017, then +6% to 2023.
Cosswiller ranks below 96% of compared French towns on residents aged 15 to 24: 7.3%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cosswiller 49.5. The median compared French town: 44.
With a median age of 49.5, Cosswiller is older than just over four fifths of compared French towns. Against that, 11% of residents are 15 to 24 in the typical compared French town. The census found that 22% of residents are 65 or over in the town.
Women and men · all residents
47% women, 53% men
About 111 men for every 100 women. Median share of women: Bas-Rhin 51.5%, France 51.8%.
Single-parent households make up 5.7% in Cosswiller, less than in 97% 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 Bas-Rhin median and the France median
Living alone · share
28% of households are couples with children, against 25% in the typical compared French town. For single-parent households, the comparison in the typical compared French town is 10%. Households here average 2.4 people each.
A smaller share of empty homes than 77% of compared French towns: 4.8%
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
In Cosswiller, 3.7% of homes are second homes, beside 2.1% in the typical compared French town. The benchmark for empty homes in the typical compared French town: 6.7%. Recent arrivals (under two years) make up nearly one in ten households; long-stayers (30 years or more) 27%.
A median standard of living of €29,900 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.
Living standards centre on €29,900 a year per consumption unit: higher than in 84% of compared French towns.
A lower share of households headed by a manual worker than 95% of compared French towns, at 5.7%
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
By its share of households headed by a manager or professional (11%), Cosswiller is above 61% of compared French towns. The share of households headed by a retired person stands at 40%. Against that, 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).
Below 92% of compared French towns: 1.1% of residents are foreign nationals
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 make up a share lower than in four fifths of compared French towns; the median compared commune in Bas-Rhin has 8.5%. The share of foreign nationals in the typical compared French town is 4.3%. Census figures put immigrants at 3.2% in Cosswiller.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
56% of residents 15 and over are married, more than in 99% of compared French towns
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
17% of residents 15 and over are single (typical compared French town: 25%). Married residents: 43% in the typical compared French town, for comparison.
In Cosswiller, 13% of adults out of school have no qualification, fewer than in 85% of compared French towns
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
35% of adults out of school hold a higher-education qualification, against 30% in the typical compared French town. The benchmark for adults with no qualification in the typical compared French town: 19%.
Of 41 French towns its size (610 to 2,582 people), the 14th 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
No nearby town is as old as Cosswiller
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cosswiller | 49.5 | 22% | 3.7% | 3.2% |
| Wasselonne 5,780 · 2.1 mi | 46.8 | 24% | 1.6% | 6.6% |
| Marmoutier 2,699 · 4.3 mi | 44.4 | 21% | 1.6% | 5.7% |
| Marlenheim 4,185 · 4.4 mi | 46.5 | 24% | 2.2% | 5.6% |
| Mutzig 6,087 · 7 mi | 37.8 | 17% | 4.5% | 10% |
| Saverne 11,460 · 7.7 mi | 46.2 | 24% | 2.8% | 13% |
| Molsheim 9,318 · 7.7 mi | 44.8 | 22% | 1% | 9.5% |
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 Cosswiller
What is the population of Cosswiller?
610 at INSEE’s 2023 census, 7% more than in 2012 (568).
How old are Cosswiller’s residents?
The median age is 49.5, older than 81% of compared French towns. 20% are under 18 and 22% 65 or older.
How many second homes are there in Cosswiller?
10, with occasional dwellings: 3.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cosswiller?
INSEE counts 19 immigrants (born abroad, not French at birth), 3.2% of residents, and 7 foreign nationals (1.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cosswiller?
€29,900 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.