Older than 98% of compared French towns: half of Dému is over 60.4
Households in social housing: 0.7% here and 12% in the typical compared French town. At the 2023 Census, 317 people lived in Dému, in 160 households. The share of couples with children stands at 16%. On households headed by a retired person, Dému sits higher than 99% of compared French towns: 58%.
Throughout this page, the Gers 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 Dému
An older town
Half of Dému’s residents are under 60.4 and half over; the median of compared French towns is 44. 38% are 65 or older (France median 22%), 11% 80 or older. Ages ↓
Fewer residents than in 2012
Dému had 333 residents at the 2012 census and 317 in 2023, down 5%: slower growth than in 87% of compared French towns. Population ↓
Empty homes
The census found 24 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Dému changed by −5% from 2012 to 2023, behind 87% 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 median Gers town changed ±0% and the median compared French town +5%; here the first five years brought +1% and the next six −6%.
A lower share of residents aged 15 to 24 than 99% of compared French towns, at 5.3%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Dému 60.4. The median compared French town: 44.
With residents aged 65 and over at 38%, Dému is ahead of 97% of compared French towns on that count. Set beside that, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Gers 52.4%, France 51.8%.
Below 99% of compared French towns: 2.9% of households are single parents
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 Gers median and the France median
Living alone · share
There are 1.9 people in the average household. Single-parent households: 10% in the typical compared French town, for comparison. At 37%, the share of one-person households is higher than in 56% of compared French towns.
Only 3.2% of homes are flats in Dému
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
Long tenure is the mark of 27% of households (30 years or more), short tenure of 7.3% (under two years). Second homes are more common here than in 87% of compared French towns. At the same time, 5.2% of households have no car; in the typical compared French town the figure is 11%.
A typical living standard of €23,840 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 €23,840 a year per consumption unit: lower than in 73% of compared French towns.
Dému sits below 98% of compared French towns for households headed by a manager or professional (2.8%)
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
12% of households are headed by a manual worker, against 14% in the typical compared French town. Households headed by a manager or professional: 9.4% in the typical compared French town, for comparison.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A higher share of foreign nationals than 70% of compared French towns, at 7.2%
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.
In Dému, nearly one in ten residents are immigrants, beside 6.5% in the typical compared French town. On average, 4.3% of residents are foreign nationals in the typical compared French town. That is higher than in 63% of compared French towns; the median compared commune in Gers has 7.9%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
In Dému, 21% of residents 15 and over are single, fewer than in 89% 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
Married residents make up 46%, against 43% in the typical compared French town. Typically, 25% of residents 15 and over are single in the typical compared French town.
In Dému, 22% of adults out of school hold a higher-education qualification, fewer than in 79% 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
Few places have as many adults with no qualification: 20% here, more than in 56% of compared French towns. To put it in context, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 4th oldest of 41 French towns of 317 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Every neighbor is younger than Dému
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Dému | 60.4 | 38% | 9.6% | 8.4% |
| Vic-Fezensac 3,577 · 6.9 mi | 53.7 | 34% | 4.6% | 6.1% |
| Eauze 4,108 · 7.5 mi | 54.2 | 33% | 8.4% | 20% |
| Condom 6,473 · 17 mi | 53.9 | 34% | 5% | 17% |
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 Dému
What is the population of Dému?
317 at INSEE’s 2023 census, 5% fewer than in 2012 (333).
How old are Dému’s residents?
The median age is 60.4, older than 98% of compared French towns. 13% are under 18 and 38% 65 or older.
How many second homes are there in Dému?
20, with occasional dwellings: 9.6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Dému?
INSEE counts 27 immigrants (born abroad, not French at birth), 8.4% of residents, and 23 foreign nationals (7.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Dému?
€23,840 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.