Photo: © Ralph Hammann - Wikimedia Commons · CC BY-SA 4.0Fewer households in social housing than 89% of compared French towns: 4.3%
Couples with children: 30%, above three quarters of compared French towns. Dettwiller had 2,558 residents in 1,140 households at the 2023 census. Across Dettwiller, 22% of households are headed by a manual worker. Fewer residents aged 15 to 24 than in 78% of compared French towns: 9.2%.
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 Dettwiller
Fewer residents than in 2012
Dettwiller had 2,669 residents at the 2012 census and 2,558 in 2023, down 4%: slower growth than in 85% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Dettwiller has changed by −4%, slower than 85% 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
The years 2012 to 2017 brought −2%; 2017 to 2023, −2%. Over the whole period the median compared French town changed +5%, and the median Bas-Rhin town +6%.
Older than 64% of compared French towns: half of Dettwiller is over 46.1
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Dettwiller 46.1. The median compared French town: 44.
For Dettwiller, the census puts residents aged 65 and over at 23%.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Bas-Rhin 51.5%, France 51.8%.
A smaller share of one-person households than 76% of compared French towns: 30%
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
On average, 2.2 people share a household. At 9.7%, the share of single-parent households is lower than in 56% of compared French towns. One-person households: 35% in the typical compared French town, for comparison.
Dettwiller: 9.1% of homes stand empty, above 73% 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
One household in 10 has no car (median compared French town: 11%). Lower than in 58% of compared French towns: 26% of homes are flats. Measured more widely, 6.7% of homes stand empty in the typical compared French town. Across Dettwiller, 1.7% of homes are second homes.
A median standard of living of €27,110 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 median standard of living in Dettwiller is €27,110 a year per consumption unit: higher than in 62% of compared French towns. Some 7.0% of residents fall below the poverty line.
A smaller share of households headed by a manager or professional than 64% of compared French towns: 7.4%
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, 32% of households are headed by a retired person; in Dettwiller, 34%. For comparison, 9.4% of households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Only 3.1% of residents are immigrants in Dettwiller
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.
By its share of foreign nationals (2.6%), Dettwiller is below 71% of compared French towns. On average, 6.5% of residents are immigrants in the typical compared French town. That is lower than in 80% of compared French towns; the median compared commune in Bas-Rhin has 8.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
50% of residents 15 and over are married, more than in 90% 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
Set against 25% in the typical compared French town, just over a fifth of residents 15 and over are single in Dettwiller. Married residents: 43% in the typical compared French town, for comparison.
Dettwiller sits below 59% of compared French towns for graduates of higher education (27%)
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
In the typical compared French town, the share of adults with no qualification is 19%; Dettwiller has 17%. The usual figure: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
17th highest median age among 41 French towns of 2,524 to 2,589
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
At the ends of the range sit Villejust (37.2), the youngest, and Eymet (61.2), the oldest.
Older than Dettwiller: 2 of the 6 towns nearby
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Dettwiller | 46.1 | 23% | 1.7% | 3.1% |
| Bouxwiller 3,754 · 4.5 mi | 46 | 23% | 2.4% | 9.2% |
| Saverne 11,460 · 4.8 mi | 46.2 | 24% | 2.8% | 13% |
| Hochfelden 4,038 · 4.8 mi | 44 | 22% | 1.1% | 2.5% |
| Marmoutier 2,699 · 6.1 mi | 44.4 | 21% | 1.6% | 5.7% |
| Ingwiller 3,995 · 8.1 mi | 46 | 26% | 2.1% | 5.6% |
| Wasselonne 5,780 · 8.3 mi | 46.8 | 24% | 1.6% | 6.6% |
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 Dettwiller
What is the population of Dettwiller?
2,558 at INSEE’s 2023 census, 4% fewer than in 2012 (2,669).
How old are Dettwiller’s residents?
The median age is 46.1, older than 64% of compared French towns. 20% are under 18 and 23% 65 or older.
How many second homes are there in Dettwiller?
22, with occasional dwellings: 1.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Dettwiller?
INSEE counts 80 immigrants (born abroad, not French at birth), 3.1% of residents, and 65 foreign nationals (2.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Dettwiller?
€27,110 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 8, 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.