Photo: Pethrus · CC BY-SA 4.0Flats make up 67% in Saint-Égrève, more than in 88% of compared French towns
Nearly one in ten households are headed by a manager or professional in the typical compared French town, against 18% in Saint-Égrève. At the 2023 Census, 17,986 people lived locally, in 8,150 households. Locally, 16% of households rent social housing (HLM). Few places have as many one-person households: 38% here, more than in 61% of compared French towns.
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.
+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
From 2012 to 2017 the change was −2%; from 2017 to 2023, +14%. Over the same years the median compared French town changed +5%, the median Isère town +7%.
Younger than 65% of compared French towns: half of Saint-Égrève is under 42
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Saint-Égrève 42. The median compared French town: 44.
By its share of residents aged 15 to 24 (9.9%), Saint-Égrève is below 66% of compared French towns. Put another way, about one in five: 21% of residents are 65 or over.
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Median share of women: Isère 51.3%, France 51.8%.
A larger share of couples with children than 52% of compared French towns: 26%
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
On average, 2.2 people share a household. In the typical compared French town, 25% of households are couples with children. At 9.8%, single-parent households sit close to the figure in the typical compared French town.
Second homes: 1%, a lower share than 80% 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
One household in eight has no car (median compared French town: 11%). At 5.4%, the share of empty homes is lower than in 69% of compared French towns. As a yardstick, 2.1% of homes are second homes in the typical compared French town. Census figures put households without a car at 13% in Saint-Égrève.
Per consumption unit, the median standard of living is €28,960 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 Saint-Égrève is €28,960 a year per consumption unit: higher than in 78% of compared French towns. Below the poverty threshold: 11.0% of the population.
Households headed by a manual worker: 11%, a lower share than 71% 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
For Saint-Égrève, the census puts households headed by a retired person at 31%. Against that, 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).
10% of residents are immigrants, a share 71% of compared French towns don’t reach
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 higher than in 71% of compared French towns. Elsewhere, 6.5% of residents are immigrants in the typical compared French town. For Saint-Égrève, the census puts foreign nationals at 6.6%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
26% of residents 15 and over are single, more than in 58% 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 census found that 42% of residents 15 and over are married in Saint-Égrève. Single residents: 25% in the typical compared French town, for comparison.
A higher share of graduates of higher education than 89% of compared French towns, at 46%
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 Saint-Égrève, 15% of adults out of school have no qualification, beside 19% in the typical compared French town. For graduates of higher education, the comparison in the typical compared French town is 30%.
Among 41 French towns of 17,328 to 18,619 people, the 19th 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.
Moissy-Cramayel is the youngest (33.2); Sanary-sur-Mer the oldest (59.7).
Around Saint-Égrève, 4 of 6 towns have a higher 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 |
|---|---|---|---|---|
| Saint-Égrève | 42 | 21% | 1% | 10% |
| Fontanil-Cornillon 3,404 · 1.6 mi | 43.4 | 23% | 1.3% | 9.5% |
| Saint-Martin-le-Vinoux 6,078 · 1.7 mi | 37.2 | 17% | 1.6% | 19% |
| Sassenage 11,646 · 2 mi | 44.2 | 22% | 1.9% | 9.6% |
| Fontaine 22,020 · 2.7 mi | 42.2 | 21% | 1% | 22% |
| La Tronche 6,424 · 3.6 mi | 34.9 | 19% | 3.4% | 11% |
| Seyssinet-Pariset 11,739 · 3.9 mi | 44.9 | 25% | 1.5% | 11% |
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 Saint-Égrève
What is the population of Saint-Égrève?
17,986 at INSEE’s 2023 census, 11% more than in 2012 (16,176).
How old are Saint-Égrève’s residents?
The median age is 42, younger than 65% of compared French towns. 23% are under 18 and 21% 65 or older.
How many second homes are there in Saint-Égrève?
87, with occasional dwellings: 1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Égrève?
INSEE counts 1,840 immigrants (born abroad, not French at birth), 10% of residents, and 1,180 foreign nationals (6.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Égrève?
€28,960 a year per consumption unit in 2023 (median of compared French towns €25,970); 11.0% 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 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.