Half of Decazeville is over 53.8, older than 92% of compared French towns
With households headed by a retired person at 43%, Decazeville is ahead of 91% of compared French towns on that count. At the 2023 Census, 5,020 people lived here, in 2,650 households. 14% of households are couples with children. Compared with other places, households in social housing are common here: 18%, more than in 73% of compared French towns.
Throughout this page, the Aveyron 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 Decazeville
Fewer residents than in 2012
Decazeville had 5,935 residents at the 2012 census and 5,020 in 2023, down 15%: slower growth than in 99% of compared French towns. Population ↓
An older town
Half of Decazeville’s residents are under 53.8 and half over; the median of compared French towns is 44. 35% are 65 or older (France median 22%), 13% 80 or older. Ages ↓
Empty homes
The census found 840 homes empty (23%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Many people living alone
51% of Decazeville’s households are one person: higher than in 94% of compared French towns; 37% of residents 65 and over live alone. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−15% since 2012, a pace below 99% 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
Against +5% for the median compared French town and +1% for the median Aveyron town, the change came in two steps: −10% from 2012 to 2017, then −6% to 2023.
Decazeville: 35% of residents are 65 or over, above 94% of compared French towns
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Decazeville 53.8. The median compared French town: 44.
11% of residents are 15 to 24 in the typical compared French town, against 9.8% in Decazeville. As a reference point, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Aveyron 52.1%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
A higher share of one-person households than 94% of compared French towns, at 51%
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 Aveyron median and the France median
Living alone · share
On average, 1.8 people share a household. Elsewhere, 35% of households are one person living alone in the typical compared French town. Decazeville has fewer single-parent households than 71% of compared French towns, at 8.7%.
23% of homes stand empty, more than in 99% 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
By its share of second homes (3.1%), Decazeville is above 63% of compared French towns. The comparison figure for empty homes is 6.7% in the typical compared French town. In Decazeville, 50% of homes are flats. On households without a car, Decazeville sits higher than 89% of compared French towns: 23%.
At the median, €21,560 a year to live on
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 midpoint of living standards here is €21,560 a year per consumption unit, lower than in 91% of compared French towns. 26.0% of the population lives below the poverty line.
4.7% of households are headed by a manager or professional, below 88% of compared French towns
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 census found that 15% of households are headed by a manual worker in Decazeville. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Decazeville sits above 68% of compared French towns for immigrants (9.4%)
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 Decazeville, 7.1% of residents are foreign nationals, beside 4.3% in the typical compared French town. As a reference point, 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.
A smaller share of married residents than 74% of compared French towns: 39%
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
Single residents: 28% here and 25% in the typical compared French town. Set beside that, 43% of residents 15 and over are married in the typical compared French town.
A lower share of graduates of higher education than 92% of compared French towns, at 18%
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
Just over a quarter of adults out of school have no qualification (typical compared French town: 19%). The share of graduates of higher education in the typical compared French town is 30%.
Among 41 French towns of 4,965 to 5,074 people, the 5th oldest
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 Bezannes (31.7), the youngest, and Gruissan (58.6), the oldest.
Decazeville is younger than 1 of its 4 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Decazeville | 53.8 | 35% | 3.1% | 9.4% |
| Aubin 3,444 · 1.9 mi | 56.5 | 35% | 5.7% | 5% |
| Capdenac-Gare 4,440 · 8.6 mi | 51.4 | 30% | 5.9% | 7.9% |
| Figeac 9,793 · 11.5 mi | 48.2 | 29% | 4.3% | 8.7% |
| Druelle Balsac 3,187 · 18 mi | 43.4 | 18% | 4% | 3.5% |
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 Decazeville
What is the population of Decazeville?
5,020 at INSEE’s 2023 census, 15% fewer than in 2012 (5,935).
How old are Decazeville’s residents?
The median age is 53.8, older than 92% of compared French towns. 16% are under 18 and 35% 65 or older.
How many second homes are there in Decazeville?
110, with occasional dwellings: 3.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Decazeville?
INSEE counts 470 immigrants (born abroad, not French at birth), 9.4% of residents, and 360 foreign nationals (7.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Decazeville?
€21,560 a year per consumption unit in 2023 (median of compared French towns €25,970); 26.0% 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.