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47.5median age
Who lives here · INSEE, census 2023

Seltz: 26% of households are headed by a manual worker, above 97% of compared French towns

Where 11% of households have no car in the typical compared French town, Seltz has 6.7%. In 2023, the Census found 3,204 residents in the town, living in 1,450 households. Households in social housing account for 7.9%. With a median age of 47.5, Seltz is older than 72% 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 · In brief

What stands out about the people of Seltz

Immigrants

INSEE counts 700 immigrants in Seltz (people born abroad who weren’t French at birth, whatever their nationality now): 21% of residents, against 8.5% for the median compared commune in Bas-Rhin. 19% are foreign nationals. Immigrants and foreign nationals ↓

Written from INSEE’s census 2023 on this page, against compared French towns.

Population

Slower growth than 79% of compared French towns: Seltz changed by −2% 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.

Census 2012
3,281
residents
Census 2017
3,235
residents
Census 2023
3,204
residents
in today’s commune boundaries

2012 to 2023

Seltz−2%
Bas-Rhin median+6%
France median+5%

2017 to 2023

Seltz−1%
Bas-Rhin median+3%
France median+2%

Medians for comparison: +5% across compared French towns, +6% in Bas-Rhin. Here the change came as −1% to 2017, then −1% to 2023.

Ages

9.2% of residents are 15 to 24, below 79% of compared French towns

Shares of residents by age at the 2023 census.

Age groups · share of residents

SeltzBas-Rhin medianFrance median
Under 1515%
15 to 249.2%
25 to 4423%
45 to 6433%
65 and over20%
of whom 80 and over5.4%
0%20%40%

Median age of the 3,798 compared French towns

2535455565

■ Seltz 47.5. The median compared French town: 44.

In the typical compared French town, 22% of residents are 65 or over; in Seltz, 20%. The wider picture: 11% of residents are 15 to 24 in the typical compared French town.

Women and men · all residents

50% women, 50% men

Seltz
Bas-Rhin median
France median
WomenMen

About an even split. Median share of women: Bas-Rhin 51.5%, France 51.8%.

Households

One-person households: 33%, a lower share than 62% 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.

One person 33%Couple, no children 32%Couple with children 26%Single parent 8.8%Several people, not a family 0.3%

Against the Bas-Rhin median and the France median

Seltz
Bas-Rhin median
France median
One personCouple, no childrenCouple with childrenSingle parentSeveral people, not a family

Living alone · share

SeltzBas-Rhin medianFrance median
One-person households33%
Residents 65+ living alone22%
0%20%40%

The share of single-parent households trails 69% of compared French towns: 8.8%. Few places have as many couples with children: 26% here, more than in 53% of compared French towns. For one-person households, the comparison in the typical compared French town is 35%. The average household has 2.2 people.

Homes & cars

A higher share of empty homes than 67% of compared French towns, at 8.3%

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

SeltzBas-Rhin medianFrance median
Main residences90%
Second homes2.1%
Empty8.3%
0%50%100%

Type of home

Seltz
Bas-Rhin median
France median
HousesFlats

Cars per household · share of households

SeltzBas-Rhin medianFrance median
No car6.7%
One car44%
Two or more49%
0%30%60%

Households that moved in under two years ago: 9.8%. Those in their home 30 years or more: 25%. Set beside that, 6.7% of homes stand empty in the typical compared French town. Lower than in just over half of compared French towns: 2.1% of homes are second homes. One household in 15 has no car, against 11% in the median compared French town.

Income

Per consumption unit, the median standard of living is €28,660 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.

Median standard of living
€28,660
a year, per consumption unit (2023)
Medians: Bas-Rhin €27,505 · France €25,970
Poverty rate
11.0%
of residents below 60% of France’s median standard of living
Medians: Bas-Rhin 11.0% · France 13.0%

Medians of compared communes. Source: INSEE, Filosofi 2023.

Half of Seltz’s residents live in households with a standard of living below €28,660 a year per consumption unit, and half above: higher than in 76% of compared French towns. The share living below the poverty line is 11.0%.

Households by occupation

A lower share of households headed by a retired person than 88% of compared French towns, at 23%

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

SeltzBas-Rhin medianFrance median
Retired23%
Managers and professionals11%
Intermediate occupations17%
Clerical and service workers16%
Manual workers26%
Craftspeople, shopkeepers, business owners3.7%
Farmers0.3%
Others not working3%
0%20%40%
Unemployment rate
5.2%
of economically active residents 15 to 64 (census 2023)
Median of compared communes: 10.1%
Working residents
1,640
aged 15 or older

Households headed by a manager or professional: 11% here and 9.4% in the typical compared French town. By way of comparison, nearly a third 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).

Immigrants and foreign nationals

More immigrants than 93% of compared French towns: 21%

INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.

Immigrants
660
21% of residents
Median of compared communes: 6.5%
Foreign nationals
620
19% of residents
Median of compared communes: 4.3%

Share of residents · census 2023

SeltzBas-Rhin medianFrance median
Immigrants21%
Foreign nationals19%
0%15%30%

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: 19% here and 4.3% in the typical compared French town. Elsewhere, 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.

Couples

Seltz sits above 71% of compared French towns for married residents (46%)

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

SeltzBas-Rhin medianFrance median
Married46%
In a civil partnership (PACS)6.1%
Living together, unmarried9.7%
Single24%
Divorced7.1%
Widowed7%
0%30%60%

About one in four: that is how common single residents are in Seltz (24%). In the typical compared French town, married residents come to 43%.

Qualifications

In Seltz, 22% of adults out of school hold a higher-education qualification, fewer than in 81% of compared French towns

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

SeltzBas-Rhin medianFrance median
No diploma (or primary certificate)20%
Brevet4.4%
CAP or BEP (vocational)34%
Baccalauréat20%
Bac+28%
Bac+3 or bac+47.5%
Bac+5 or more6%
0%20%40%

A fifth of adults out of school have no qualification, or about one in five. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.

Towns its size

The 18th oldest of 41 French towns of 3,184 to 3,225 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.

Seltz 47.5
OrmoySaint-Quay-PortrieuxCrêches-sur-Saône
314865

Ages run from 32.2 in Ormoy to 63.2 in Saint-Quay-Portrieux.

Neighbors

Seltz and its 6 nearest towns: 1 of them are older

The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.

SoufflenheimBetschdorfSoultz-sous-ForêtsDrusenheimWissembourgOberhoffen-sur-ModerSeltz
Under 3838–4444–5050–5656+
TownMedian age65+Second homesImmigrants
Seltz47.520%2.1%21%
Soufflenheim
4,740 · 7.9 mi
46.423%2.2%9.5%
Betschdorf
4,231 · 8.9 mi
45.623%1.1%5.8%
Soultz-sous-Forêts
3,121 · 10.1 mi
45.322%1.3%4.5%
Drusenheim
5,388 · 11.4 mi
45.322%0.6%6.3%
Wissembourg
7,566 · 11.8 mi
51.827%3.2%19%
Oberhoffen-sur-Moder
3,992 · 13.3 mi
41.920%0.4%3.4%
More about Seltz

Health, work, housing and schools

How to read these numbers

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 Seltz

What is the population of Seltz?

3,204 at INSEE’s 2023 census, 2% fewer than in 2012 (3,281).

How old are Seltz’s residents?

The median age is 47.5, older than 72% of compared French towns. 18% are under 18 and 20% 65 or older.

How many second homes are there in Seltz?

34, with occasional dwellings: 2.1% of all homes, against 2.1% for the median compared French town.

How many immigrants live in Seltz?

INSEE counts 660 immigrants (born abroad, not French at birth), 21% of residents, and 620 foreign nationals (19%). The medians of compared French towns are 6.5% and 4.3%.

What is the median income in Seltz?

€28,660 a year per consumption unit in 2023 (median of compared French towns €25,970); 11.0% 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 4, 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.