A median age of 37.2: Alzen is younger than 91% of compared French towns
Households headed by a manager or professional are rarer here than in 99% of compared French towns. Census day 2023: 262 residents and 110 households in Alzen. Flats make up about one in 59 here (1.7%). Against a figure of 25% in the typical compared French town, the share of couples with children in Alzen comes in at 17%.
Throughout this page, the Ariège 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 Alzen
One home in four is a second home
The census counted 50 second homes and occasional dwellings in Alzen, 28% of its 180 homes: higher than in 95% of compared French towns. 92% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
A young town
Half of Alzen’s residents are under 37.2 and half over; the median of compared French towns is 44. 24% are under 15 and 15% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A larger share of second homes than 95% of compared French towns: 28%
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
With households without a car at 5.3%, Alzen is behind 85% of compared French towns on that count. As a yardstick, 2.1% of homes are second homes in the typical compared French town. 6% of households rent social housing (HLM). More empty homes than in 57% of compared French towns: 7.3%.
Alzen grew +15% from 2012 to 2023, ahead of 83% 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 the same years the median compared French town changed +5%, the median Ariège town +2%.
Residents aged 65 and over: 15%, a lower share than 91% 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
■ Alzen 37.2. The median compared French town: 44.
At 11%, the share of residents aged 15 to 24 is higher than in 52% of compared French towns. Against that, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Ariège 52.2%, France 51.8%.
Above 98% of compared French towns: 17% 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 Ariège median and the France median
Living alone · share
The share of one-person households is 31%, against 35% in the typical compared French town. Single-parent households: 10% in the typical compared French town, for comparison. On average, 2.3 people share a household.
The median resident lives on €14,030 a year per consumption unit
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 €14,030 a year per consumption unit: lower than in 99% of compared French towns.
48% of households are headed by a retired person, more than in 96% 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
Set against 14% in the typical compared French town, 17% of households are headed by a manual worker in Alzen. Households headed by a retired person: 32% 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).
Alzen: 5.7% of residents are immigrants
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.
Immigrants make up about one in 18 here (5.7%). That is lower than in 57% of compared French towns; the median compared commune in Ariège has 9.1%. 4.2% of residents are foreign nationals, about the same as 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.
Only 26% of residents 15 and over are married in Alzen
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
Here 38% of residents 15 and over are single, where the figure in the typical compared French town is 25%. Married residents make up 43% in the typical compared French town.
Adults with no qualification make up 9.9% in Alzen, less than in 96% 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
In Alzen, 45% of adults out of school hold a higher-education qualification, beside 30% in the typical compared French town. Measured more widely, nearly a fifth of adults out of school have no qualification in the typical compared French town.
Ranked by age, 2nd 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Alzen is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Alzen | 37.2 | 15% | 28% | 5.7% |
| Foix 9,934 · 7.3 mi | 46.8 | 27% | 7.6% | 15% |
| Varilhes 3,487 · 9.3 mi | 46.7 | 26% | 3.7% | 4.1% |
| Saint-Jean-du-Falga 2,851 · 10.6 mi | 50 | 30% | 1.8% | 7.6% |
| Pamiers 16,473 · 11.8 mi | 39.8 | 21% | 2.7% | 13% |
| Tarascon-sur-Ariège 3,085 · 11.8 mi | 51.4 | 32% | 8% | 18% |
| La Tour-du-Crieu 3,230 · 12.5 mi | 44.8 | 23% | 1.3% | 6.3% |
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 Alzen
What is the population of Alzen?
262 at INSEE’s 2023 census, 15% more than in 2012 (227).
How old are Alzen’s residents?
The median age is 37.2, younger than 91% of compared French towns. 29% are under 18 and 15% 65 or older.
How many second homes are there in Alzen?
50, with occasional dwellings: 28% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Alzen?
INSEE counts 15 immigrants (born abroad, not French at birth), 5.7% of residents, and 11 foreign nationals (4.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Alzen?
€14,030 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 October 30, 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.