A lower share of households in social housing than 99% of compared French towns, at 0.4%
A quarter of households are headed by a retired person, against 32% in the typical compared French town. On single-parent households, Mœrnach sits lower than 91% of compared French towns: 6.8%. This Haut-Rhin town is home to 518 residents in 220 households, by the 2023 Census. The census found that 3.1% of households have no car locally.
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.
What stands out about the people of Mœrnach
Fewer residents than in 2012
Mœrnach had 583 residents at the 2012 census and 518 in 2023, down 11%: slower growth than in 98% of compared French towns. Population ↓
Empty homes
The census found 43 homes empty (16%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−11% since 2012, a pace below 98% 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 Haut-Rhin town changed +4% and the median compared French town +5%. Between 2012 and 2017 the population moved −9%, then −2% to 2023.
A lower share of residents aged 15 to 24 than 88% of compared French towns, at 8.5%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Mœrnach 45. The median compared French town: 44.
The median age in Mœrnach is 45, higher than in 57% of compared French towns. The usual figure: 11% of residents are 15 to 24 in the typical compared French town. On the census count, 21% of residents are 65 or over.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Haut-Rhin 51.5%, France 51.8%.
Below 94% of compared French towns: 25% 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
Each household has 2.3 people on average. Higher than in 83% of compared French towns: 32% of households are couples with children. The wider picture: just over a third of households are one person living alone in the typical compared French town.
Mœrnach ranks above 97% of compared French towns on empty homes: 16%
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
Against a figure of 30% in the typical compared French town, the share of flats in Mœrnach comes in at 6.7%. 1.1% of homes are second homes.
Half above, half below €35,990 a year in standard of living
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 €35,990 a year per consumption unit and half below; the level is higher than in 96% of compared French towns.
A larger share of households headed by a manual worker than 99% of compared French towns: 30%
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
The share of households headed by a manager or professional is 6.8%, against 9.4% in the typical compared French town. In the typical compared French town, 14% of households are headed by a manual worker.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 4.6% in Mœrnach, less than in 67% 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.
The share of foreign nationals stands at 3.7%. Across the comparison, 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.
Mœrnach ranks below 96% of compared French towns on single residents: 19%
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
The share of married residents tops 94% of compared French towns: 51%. By way of comparison, a quarter of residents 15 and over are single in the typical compared French town.
A lower share of graduates of higher education than 85% of compared French towns, at 20%
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
Set against 19% in the typical compared French town, just over a fifth of adults out of school have no qualification in Mœrnach. The comparison figure for graduates of higher education is 30% in the typical compared French town.
Ranked by age, 20th youngest of 41 French towns this size
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.
2 of 6 neighbors are older than Mœrnach
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Mœrnach
What is the population of Mœrnach?
518 at INSEE’s 2023 census, 11% fewer than in 2012 (583).
How old are Mœrnach’s residents?
The median age is 45, older than 57% of compared French towns. 21% are under 18 and 21% 65 or older.
How many second homes are there in Mœrnach?
3, with occasional dwellings: 1.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Mœrnach?
INSEE counts 24 immigrants (born abroad, not French at birth), 4.6% of residents, and 19 foreign nationals (3.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Mœrnach?
€35,990 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 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.