Fewer households in social housing than 86% of compared French towns: 5%
Set against 6.7% in the typical compared French town, just over one in ten homes stand empty in Illfurth. There were 1,110 households here at the 2023 Census, home to 2,445 residents. The share of households without a car stands at 5.6%. Half of the town’s residents are over 47.6, older than in 72% 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.
Slower growth than 80% of compared French towns: Illfurth changed by −3% since 2012
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
Over those years, the median Haut-Rhin town changed +4% and the median compared French town +5%. Between 2012 and 2017 the population moved −1%, then −1% to 2023.
Fewer residents aged 15 to 24 than 69% of compared French towns: 9.7%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Illfurth 47.6. The median compared French town: 44.
Residents aged 65 and over account for 22%. Elsewhere, 11% of residents are 15 to 24 in the typical compared French town.
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%.
Below 60% of compared French towns: 33% of households are one person living alone
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
Where 10% of households are single parents in the typical compared French town, Illfurth has 11%. Typically, 35% of households are one person living alone in the typical compared French town. Couples with children account for 25%.
35% of homes are flats, a share 58% of compared French towns don’t reach
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
Turnover: nearly one in ten households moved in less than two years ago, and 24% have lived in their home 30 years or more. 1.3% of homes are second homes, a lower share than in 70% of compared French towns.
Per consumption unit, the median standard of living is €30,690 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 €30,690 a year per consumption unit: higher than in 87% of compared French towns. Some 6.0% of residents fall below the poverty line.
19% of households are headed by a manual worker, more than in 78% 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
In the typical compared French town, the share of households headed by a manager or professional is 9.4%; Illfurth has 11%. Census figures put households headed by a retired person at 33% here. The usual figure: 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 67% of compared French towns: 4.6% 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.
Set against 4.3% in the typical compared French town, 2.5% of residents are foreign nationals in Illfurth. Immigrants make up 6.5% in the typical compared French town. The median compared commune in Haut-Rhin has 10%; immigrants here make up a share lower than in two thirds of compared French towns.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents make up 21% in Illfurth, less than in 88% 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
In the typical compared French town, 43% of residents 15 and over are married; in Illfurth, 48%. Single residents: 25% in the typical compared French town, for comparison.
Illfurth ranks below 78% of compared French towns on adults with no qualification: 14%
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
By its share of graduates of higher education (37%), Illfurth is above 72% of compared French towns. The share of adults with no qualification in the typical compared French town is 19%.
Of 41 French towns its size (2,445 to 2,582 people), the 15th 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Illfurth is younger than 1 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Illfurth | 47.6 | 22% | 1.3% | 4.6% |
| Zillisheim 2,561 · 2.1 mi | 50.6 | 26% | 1.1% | 7.3% |
| Altkirch 5,687 · 3.9 mi | 43.5 | 20% | 2.3% | 12% |
| Brunstatt-Didenheim 8,259 · 4.1 mi | 45.7 | 23% | 4.1% | 9.8% |
| Morschwiller-le-Bas 3,694 · 4.4 mi | 44.5 | 20% | 0.6% | 8.3% |
| Lutterbach 6,851 · 5.9 mi | 44.4 | 24% | 1.2% | 10% |
| Mulhouse 104,978 · 6.1 mi | 37.8 | 17% | 2.1% | 27% |
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 Illfurth
What is the population of Illfurth?
2,445 at INSEE’s 2023 census, 3% fewer than in 2012 (2,511).
How old are Illfurth’s residents?
The median age is 47.6, older than 72% of compared French towns. 20% are under 18 and 22% 65 or older.
How many second homes are there in Illfurth?
16, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Illfurth?
INSEE counts 110 immigrants (born abroad, not French at birth), 4.6% of residents, and 62 foreign nationals (2.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Illfurth?
€30,690 a year per consumption unit in 2023 (median of compared French towns €25,970); 6.0% 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.