Below 99% of compared French towns: 3% of households have no car
The figure for couples with children is 32% in Vertrieu and 25% in the typical compared French town. 1.9% of households rent social housing (HLM), fewer than in 97% of compared French towns. There were 260 households in the town at the 2023 Census, home to 608 residents. In Vertrieu, 5.5% of homes are flats.
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 Vertrieu
One home in eight is a second home
The census counted 40 second homes and occasional dwellings in Vertrieu, 12% of its 320 homes: higher than in 90% of compared French towns. 95% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Fewer residents than in 2012
Vertrieu had 661 residents at the 2012 census and 608 in 2023, down 8%: slower growth than in 95% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Second homes: 12%, a higher share than 90% 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
18% of households have been in place 30 years or more; 7.9% moved in within the last two years. Lower than in 59% of compared French towns: 6.1% of homes stand empty. The wider picture: 2.1% of homes are second homes in the typical compared French town.
Slower than most: −8% since 2012, behind 95% 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 change was −3% from 2012 to 2017 and −5% from 2017 to 2023.
Below 92% of compared French towns: 8% of residents are 15 to 24
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Vertrieu 42.6. The median compared French town: 44.
The share of residents aged 65 and over trails 86% of compared French towns: 16%. Elsewhere, 11% of residents are 15 to 24 in the typical compared French town. Half of Vertrieu’s residents are under 42.6, younger than in just over three fifths of compared French towns.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
Only 5.7% of households are single parents in Vertrieu
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
30% of households are one person living alone; in the typical compared French town the figure is 35%. On average, 10% of households are single parents in the typical compared French town. Average household size: 2.3 people.
A median of €27,700 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.
At €27,700 a year per consumption unit, the median standard of living here is higher than in 68% of compared French towns.
Only 24% of households are headed by a retired person in Vertrieu
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 manager or professional make up 5.7%, against 9.4% in the typical compared French town. Census figures put households headed by a manual worker at 21% in Vertrieu. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Foreign nationals: 2.3%, a lower share than 75% of compared French towns
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 share of immigrants is 5.2%, against 6.5% in the typical compared French town. The benchmark for foreign nationals in the typical compared French town: 4.3%. That is lower than in just over three fifths of compared French towns; the median compared commune in Isère has 8%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
20% of residents 15 and over are single, fewer than in 93% 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, 43% of residents 15 and over are married; in Vertrieu, 48%. For single residents, the comparison in the typical compared French town is 25%.
Only 15% of adults out of school have no qualification in Vertrieu
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
28% of adults out of school hold a higher-education qualification; in the typical compared French town the figure is 30%. The usual figure: 19% of adults out of school have no qualification in the typical compared French town.
Among 41 French towns of 608 to 2,582 people, the 10th youngest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
A younger town than 1 of the 6 around it: Vertrieu
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Vertrieu | 42.6 | 16% | 12% | 5.2% |
| Lagnieu 7,411 · 2 mi | 43.1 | 23% | 2.1% | 7.3% |
| Montalieu-Vercieu 3,510 · 4.6 mi | 38.3 | 16% | 4.1% | 5% |
| Ambérieu-en-Bugey 15,934 · 5.9 mi | 37.5 | 18% | 1.4% | 13% |
| Villieu-Loyes-Mollon 3,849 · 7.5 mi | 41.1 | 17% | 3.2% | 3.4% |
| Meximieux 8,247 · 8.5 mi | 39 | 18% | 2.2% | 7.5% |
| Ambronay 2,841 · 9.1 mi | 42.1 | 19% | 2.9% | 3.3% |
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 Vertrieu
What is the population of Vertrieu?
608 at INSEE’s 2023 census, 8% fewer than in 2012 (661).
How old are Vertrieu’s residents?
The median age is 42.6, younger than 61% of compared French towns. 24% are under 18 and 16% 65 or older.
How many second homes are there in Vertrieu?
40, with occasional dwellings: 12% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Vertrieu?
INSEE counts 32 immigrants (born abroad, not French at birth), 5.2% of residents, and 14 foreign nationals (2.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Vertrieu?
€27,700 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.