Only 20% of households are one person living alone in Keffenach
Just over one in ten residents are 15 to 24 in the typical compared French town, against 6.4% in Keffenach. At the 2023 Census Keffenach was home to 198 people in 83 households. For Keffenach, the census puts flats at 6.9%. Households headed by a manager or professional are rarer here than in 99% of compared French towns.
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.
What stands out about the people of Keffenach
A town of families
33% of households are couples with children and 6.7% single parents with children; 19% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Keffenach changed by −2% from 2012 to 2023, slower than 80% 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
Over those years, the median Bas-Rhin town changed +6% and the median compared French town +5%.
Keffenach is older than 80% of compared French towns: a median age of 49.2
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Keffenach 49.2. The median compared French town: 44.
Nearly a fifth of residents are 65 or over (typical compared French town: 22%).
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Bas-Rhin 51.5%, France 51.8%.
More couples with children than 88% of compared French towns: 33%
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
Single-parent households make up 6.7%, against 10% in the typical compared French town. Elsewhere, a quarter of households are couples with children in the typical compared French town. Average household size: 2.4 people.
9% of households have no car, fewer than in 60% 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 are rarer here than in 99% of compared French towns. To put it in context, 11% of households have no car in the typical compared French town. Turnover: 5.1% of households moved in less than two years ago, and 41% have lived in their home 30 years or more. Keffenach sits close to the norm on second homes: 2.9%, about the same as in the typical compared French town.
A median standard of living of €29,370 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 €29,370 a year per consumption unit and half below; the level is higher than in 81% of compared French towns.
A larger share of households headed by a manual worker than 99% of compared French towns: 33%
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
Against a figure of 32% in the typical compared French town, the share of households headed by a retired person in Keffenach comes in at 27%. Across the comparison, 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).
Immigrants: 5.3%, a lower share than 60% 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.
On the census count, 3.7% of residents are foreign nationals. The benchmark for immigrants in the typical compared French town: 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents make up 64% in Keffenach, 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
Here 15% of residents 15 and over are single, where the figure in the typical compared French town is 25%. For married residents, the comparison in the typical compared French town is 43%.
A lower share of adults with no qualification than 66% of compared French towns, at 16%
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
Here 28% of adults out of school hold a higher-education qualification, where the figure in the typical compared French town is 30%. To put it in context, 19% of adults out of school have no qualification in the typical compared French town.
The 15th oldest of 41 French towns of 198 to 2,582 people
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).
Keffenach sits below 1 of its 6 closest neighbors on median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Keffenach | 49.2 | 19% | 2.9% | 5.3% |
| Soultz-sous-Forêts 3,121 · 2.1 mi | 45.3 | 22% | 1.3% | 4.5% |
| Betschdorf 4,231 · 4.8 mi | 45.6 | 23% | 1.1% | 5.8% |
| Wissembourg 7,566 · 5.6 mi | 51.8 | 27% | 3.2% | 19% |
| Reichshoffen 5,418 · 10.1 mi | 47.3 | 25% | 1.6% | 9.1% |
| Soufflenheim 4,740 · 10.1 mi | 46.4 | 23% | 2.2% | 9.5% |
| Gundershoffen 3,834 · 10.7 mi | 43.6 | 20% | 1.1% | 6.7% |
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 Keffenach
What is the population of Keffenach?
198 at INSEE’s 2023 census, 2% fewer than in 2012 (203).
How old are Keffenach’s residents?
The median age is 49.2, older than 80% of compared French towns. 22% are under 18 and 19% 65 or older.
How many second homes are there in Keffenach?
3, with occasional dwellings: 2.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Keffenach?
INSEE counts 11 immigrants (born abroad, not French at birth), 5.3% of residents, and 7 foreign nationals (3.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Keffenach?
€29,370 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.