Janneyrias: 38% of households are couples with children, above 97% of compared French towns
The figure for households headed by a retired person is 21% in Janneyrias and 32% in the typical compared French town. For Janneyrias, the census puts households without a car at 3.6%. With a median age of 39.6, Janneyrias is younger than 81% of compared French towns. 1,896 residents in 770 households: that is Janneyrias at the 2023 Census.
Throughout this page, the Isère 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 Janneyrias
A town of families
38% of households are couples with children and 5.6% single parents with children; 20% of residents are under 15. Households ↓
Growing fast
Janneyrias had 1,544 residents at the 2012 census and 1,896 in 2023, up 23%: faster growth than in 93% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
From 2012 to 2023, Janneyrias outgrew 93% of compared French towns: +23%
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
Medians for comparison: +5% across compared French towns, +7% in Isère. Here the change came as +18% to 2017, then +4% to 2023.
In Janneyrias, 14% of residents are 65 or over, fewer than in 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
■ Janneyrias 39.6. The median compared French town: 44.
9.9% of residents are 15 to 24 (typical compared French town: 11%). The wider picture: 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
Below 92% of compared French towns: 26% 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 Isère median and the France median
Living alone · share
Single-parent households: 5.6%, below 97% of compared French towns. The usual figure: just over a third of households are one person living alone in the typical compared French town. Each household has 2.5 people on average.
A smaller share of households in social housing than 96% of compared French towns: 2.2%
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
In the typical compared French town, the share of empty homes is 6.7%; Janneyrias has 3.8%. Lower than in 91% of compared French towns: 0.7% of homes are second homes. Households in social housing make up 12% in the typical compared French town. Put another way, about one in five: 20% of homes are flats.
A median of €29,920 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.
The midpoint of living standards here is €29,920 a year per consumption unit, higher than in 84% of compared French towns.
13% of households are headed by a manager or professional, a share 67% of compared French towns don’t reach
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
In the typical compared French town, the share of households headed by a manual worker is 14%; Janneyrias has 13%. Set beside that, nearly one in ten households are headed by a manager or professional 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 6.1% of Janneyrias’ 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.
The median compared commune in Isère has 8%; immigrants here make up a share lower than in 53% of compared French towns. Census figures put foreign nationals at 3.5% in Janneyrias.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents make up 20% in Janneyrias, less than in 90% 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
The share of married residents is 48%, against 43% in the typical compared French town. Typically, 25% of residents 15 and over are single in the typical compared French town.
14% of adults out of school have no qualification, fewer than in 78% 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
31% of adults out of school hold a higher-education qualification, or about one in three. The comparison figure for adults with no qualification is 19% 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Janneyrias sits below 3 of its 6 closest neighbors on median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Janneyrias | 39.6 | 14% | 0.7% | 6.1% |
| Charvieu-Chavagneux 10,547 · 2.1 mi | 35.9 | 13% | 0.5% | 13% |
| Pusignan 4,119 · 2.3 mi | 40.1 | 17% | 1.6% | 8.2% |
| Colombier-Saugnieu 2,874 · 2.5 mi | 40.3 | 15% | 0.9% | 7.7% |
| Villette-d'Anthon 5,268 · 2.6 mi | 42.8 | 21% | 8.9% | 5.6% |
| Pont-de-Chéruy 6,302 · 3 mi | 33.9 | 15% | 1.1% | 22% |
| Chavanoz 5,126 · 3.5 mi | 37.1 | 14% | 0.9% | 13% |
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 Janneyrias
What is the population of Janneyrias?
1,896 at INSEE’s 2023 census, 23% more than in 2012 (1,544).
How old are Janneyrias’ residents?
The median age is 39.6, younger than 81% of compared French towns. 23% are under 18 and 14% 65 or older.
How many second homes are there in Janneyrias?
5, with occasional dwellings: 0.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Janneyrias?
INSEE counts 120 immigrants (born abroad, not French at birth), 6.1% of residents, and 67 foreign nationals (3.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Janneyrias?
€29,920 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.