Montjaux sits above 97% of compared French towns for second homes (43%)
The share of residents aged 15 to 24 trails 99% of compared French towns: 5.3%. The 2023 Census counted 436 residents in 210 households. Census figures put households in social housing at 2.3% in Montjaux. 2.2% of homes stand empty, fewer than in 98% 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 Montjaux
One home in two is a second home
The census counted 170 second homes and occasional dwellings in Montjaux, 43% of its 390 homes: higher than in 97% of compared French towns. 99% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
An older town
Half of Montjaux’s residents are under 51.5 and half over; the median of compared French towns is 44. 26% are 65 or older (France median 22%), 3.2% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A lower share of flats than 99% of compared French towns, at 0.8%
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
Here 3.8% of households have no car, where the figure in the typical compared French town is 11%. Typically, 30% of homes are flats in the typical compared French town.
+11% since 2012, a pace 73% of compared French towns didn’t match
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
Here the change came as +4% to 2017, then +7% to 2023. Medians for comparison: +5% across compared French towns, +1% in Aveyron.
Montjaux is older than 88% of compared French towns: a median age of 51.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Montjaux 51.5. The median compared French town: 44.
Where just over a fifth of residents are 65 or over in the typical compared French town, Montjaux has 26%.
Women and men · all residents
48% women, 52% men
About 110 men for every 100 women. Median share of women: Aveyron 52.1%, France 51.8%.
Montjaux ranks below 99% of compared French towns on single-parent households: 4.7%
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
In the typical compared French town, the share of one-person households is 35%; Montjaux has 40%. Compared with other places, couples with children are scarce here: 21%, fewer than in 70% of compared French towns. As a reference point, one in ten households are single parents in the typical compared French town. On average, 2.1 people share a household.
Half of residents have a standard of living above €22,940 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.
The median standard of living in Montjaux is €22,940 a year per consumption unit: lower than in 82% of compared French towns.
Only 9.3% of households are headed by a manual worker in Montjaux
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
Households headed by a retired person: 30%, below 63% of compared French towns. On top of that, on households headed by a manager or professional, Montjaux sits lower than 68% of compared French towns: 7%. By way of comparison, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 5.9% of Montjaux’s residents
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 17 here (5.9%). That is lower than in 55% of compared French towns; the median compared commune in Aveyron has 6.5%. Foreign nationals: 4.3%, near enough the figure 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.
In Montjaux, 20% 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
In the typical compared French town, the share of married residents is 43%; Montjaux has 47%. Elsewhere, 25% of residents 15 and over are single in the typical compared French town.
Montjaux sits below 90% of compared French towns for adults with no qualification (11%)
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
Graduates of higher education: 32% here and 30% in the typical compared French town. In the typical compared French town, adults with no qualification come to 19%.
The 10th oldest of 41 French towns of 436 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 Montjaux
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Montjaux | 51.5 | 26% | 43% | 5.9% |
| Millau 22,044 · 8.4 mi | 49.2 | 27% | 9.5% | 8.3% |
| Saint-Affrique 7,941 · 9.4 mi | 49.9 | 30% | 8.8% | 5.8% |
| Sévérac d'Aveyron 4,026 · 17.7 mi | 51.1 | 30% | 20% | 4.1% |
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 Montjaux
What is the population of Montjaux?
436 at INSEE’s 2023 census, 11% more than in 2012 (392).
How old are Montjaux’s residents?
The median age is 51.5, older than 88% of compared French towns. 20% are under 18 and 26% 65 or older.
How many second homes are there in Montjaux?
170, with occasional dwellings: 43% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Montjaux?
INSEE counts 26 immigrants (born abroad, not French at birth), 5.9% of residents, and 19 foreign nationals (4.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Montjaux?
€22,940 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 9, 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.