One-person households: 26%, a lower share than 91% of compared French towns
The share of households without a car trails 87% of compared French towns: 5.2%. Illhaeusern is home to 717 residents in 320 households, by the 2023 Census. Households headed by a manager or professional account for 16%. At 8.1%, the share of residents aged 15 to 24 is lower than in 92% of compared French towns.
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.
Illhaeusern’s population changed by +7% since 2012, more than in 60% 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
From 2012 to 2017 the population moved +5%, and from 2017 to 2023 +2%; the median compared French town changed +5% and the median Haut-Rhin town +4%.
Residents aged 65 and over make up 20% in Illhaeusern, less than in 64% 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
■ Illhaeusern 45.2. The median compared French town: 44.
With a median age of 45.2, Illhaeusern is older than 58% of compared French towns. Elsewhere, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
49% women, 51% men
About 105 men for every 100 women. Median share of women: Haut-Rhin 51.5%, France 51.8%.
A higher share of couples with children than 85% of compared French towns, at 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 Haut-Rhin median and the France median
Living alone · share
8% of households are single parents; in the typical compared French town the figure is 10%. Across the comparison, a quarter of households are couples with children in the typical compared French town. Average household size: 2.3 people.
Only 17% of homes are flats in Illhaeusern
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
By its share of second homes (3.1%), Illhaeusern is above 63% of compared French towns. The benchmark for flats in the typical compared French town: 30%. Empty homes make up about one in 13 here (7.7%). Households in social housing are rarer here than in 99% of compared French towns.
A median standard of living of €31,030 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.
The midpoint of living standards here is €31,030 a year per consumption unit, higher than in 88% of compared French towns.
A lower share of households headed by a retired person than 82% of compared French towns, at 26%
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
Compared with 14% in the typical compared French town, 21% of households are headed by a manual worker here. Typically, 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).
Illhaeusern sits below 77% of compared French towns for immigrants (3.6%)
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 Haut-Rhin has 10%; immigrants here make up a share lower than in 77% of compared French towns. On average, 6.5% of residents are immigrants in the typical compared French town. 2.8% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
In Illhaeusern, 18% of residents 15 and over are single, fewer than in 98% 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
Nearly half of residents 15 and over are married (typical compared French town: 43%). For single residents, the comparison in the typical compared French town is 25%.
Only 16% of adults out of school have no qualification in Illhaeusern
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
Where 30% of adults out of school hold a higher-education qualification in the typical compared French town, Illhaeusern has 34%. Measured more widely, 19% of adults out of school have no qualification in the typical compared French town.
Of 41 French towns its size (717 to 2,582 people), the 21st 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).
Among its 6 nearest neighbors, 3 are older than Illhaeusern
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Illhaeusern | 45.2 | 20% | 3.1% | 3.6% |
| Ribeauvillé 4,685 · 5.2 mi | 47.9 | 28% | 9.6% | 6.9% |
| Marckolsheim 4,398 · 5.3 mi | 44 | 23% | 2.2% | 13% |
| Sélestat 19,589 · 5.4 mi | 42.9 | 20% | 1.7% | 11% |
| Châtenois 4,294 · 6.3 mi | 44.4 | 20% | 1.5% | 3.9% |
| Horbourg-Wihr 6,199 · 7.3 mi | 45.8 | 25% | 2.2% | 7.3% |
| Scherwiller 3,099 · 7.3 mi | 47.5 | 22% | 1.6% | 4.5% |
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 Illhaeusern
What is the population of Illhaeusern?
717 at INSEE’s 2023 census, 7% more than in 2012 (669).
How old are Illhaeusern’s residents?
The median age is 45.2, older than 58% of compared French towns. 19% are under 18 and 20% 65 or older.
How many second homes are there in Illhaeusern?
11, with occasional dwellings: 3.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Illhaeusern?
INSEE counts 26 immigrants (born abroad, not French at birth), 3.6% of residents, and 20 foreign nationals (2.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Illhaeusern?
€31,030 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.