Photo: Petr Kraumann · CC BY 3.0A lower share of households headed by a retired person than 95% of compared French towns, at 20%
Residents aged 65 and over: 17%, below 84% of compared French towns. There were 2,420 households in Blotzheim at the 2023 Census, home to 5,282 residents. Here, 5.1% of households have no car. This Haut-Rhin town has more empty homes than 82% of compared French towns, at 11%.
Throughout this page, the Haut-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.
What stands out about the people of Blotzheim
Immigrants
INSEE counts 1,200 immigrants in Blotzheim (people born abroad who weren’t French at birth, whatever their nationality now): 22% of residents, against 10% for the median compared commune in Haut-Rhin. 19% are foreign nationals. Immigrants and foreign nationals ↓
Growing fast
Blotzheim had 4,268 residents at the 2012 census and 5,282 in 2023, up 24%: faster growth than in 93% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +24% change since 2012: faster than 93% 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
For comparison, the median compared French town changed +5% and the median Haut-Rhin town +4%. The first five years brought +6%; the six to 2023, +17%.
Younger than 73% of compared French towns: half of Blotzheim is under 41
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Blotzheim 41. The median compared French town: 44.
In the typical compared French town, just over one in ten residents are 15 to 24; in Blotzheim, 10%.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Haut-Rhin 51.5%, France 51.8%.
Single-parent households: 8.2%, a lower share than 78% 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 Haut-Rhin median and the France median
Living alone · share
The typical household size is 2.2 people. Census figures put couples with children at 27% in Blotzheim. Against that, 10% of households are single parents in the typical compared French town.
Blotzheim ranks above 71% of compared French towns on flats: 47%
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
Of all households, 12% moved in during the last two years and 19% have stayed three decades or more. At 3.8%, the share of second homes is higher than in 70% of compared French towns. Typically, 30% of homes are flats in the typical compared French town.
The middle resident’s standard of living: €39,080 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.
Half of residents live in households above €39,080 a year per consumption unit and half below; the level is higher than in 98% of compared French towns. Residents below the poverty line make up 7.0%.
More households headed by a manual worker than 84% of compared French towns: 20%
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
Here 15% of households are headed by a manager or professional, where the figure in the typical compared French town is 9.4%. In the typical compared French town, the share of households headed by a manual worker is 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
In Blotzheim, 22% of residents are immigrants, more than in 95% 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 make up 19%, against 4.3% in the typical compared French town. Across the comparison, 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.
48% of residents 15 and over are married, a share 83% of compared French towns don’t reach
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
Across Blotzheim, 25% of residents 15 and over are single. The benchmark for married residents in the typical compared French town: 43%.
A smaller share of adults with no qualification than 62% of compared French towns: 17%
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
Compared with 30% in the typical compared French town, 32% of adults out of school hold a higher-education qualification here. The share of adults with no qualification in the typical compared French town is 19%.
11th lowest median age among 41 French towns of 5,222 to 5,344
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 Mormant (36.8), the oldest Bretignolles-sur-Mer (62.9).
Of the 6 towns nearest Blotzheim, 5 are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Blotzheim | 41 | 17% | 3.8% | 22% |
| Hésingue 2,972 · 2.1 mi | 43.1 | 18% | 4.7% | 26% |
| Bartenheim 4,211 · 2.4 mi | 43.2 | 17% | 1.4% | 14% |
| Saint-Louis 22,805 · 2.6 mi | 39.7 | 17% | 4.9% | 36% |
| Hégenheim 3,410 · 3 mi | 47.3 | 24% | 4.3% | 33% |
| Village-Neuf 4,709 · 3.2 mi | 43.7 | 19% | 3.4% | 18% |
| Huningue 7,487 · 3.8 mi | 42 | 19% | 2.4% | 29% |
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 Blotzheim
What is the population of Blotzheim?
5,282 at INSEE’s 2023 census, 24% more than in 2012 (4,268).
How old are Blotzheim’s residents?
The median age is 41, younger than 73% of compared French towns. 22% are under 18 and 17% 65 or older.
How many second homes are there in Blotzheim?
110, with occasional dwellings: 3.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Blotzheim?
INSEE counts 1,180 immigrants (born abroad, not French at birth), 22% of residents, and 990 foreign nationals (19%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Blotzheim?
€39,080 a year per consumption unit in 2023 (median of compared French towns €25,970); 7.0% 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.