Above 96% of compared French towns: 37% of households are couples with children
The share of flats is 8.3%, against 30% in the typical compared French town. 15% of residents are 65 or over, fewer than in 89% of compared French towns. There were 470 households in Sardieu at the 2023 Census, home to 1,193 residents. The census found that 3.6% of households have no car locally.
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 Sardieu
A town of families
37% of households are couples with children and 11% single parents with children; 21% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Sardieu grew +14% from 2012 to 2023, faster than 79% 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 Isère town +7%.
Half of Sardieu is under 39.2, younger than 83% 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
■ Sardieu 39.2. The median compared French town: 44.
Residents aged 15 to 24 make up 12%, against 11% 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%.
A smaller share of one-person households than 96% of compared French towns: 24%
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
The share of single-parent households tops 70% of compared French towns: 11%. A household here holds 2.5 people on average. As a reference point, 35% of households are one person living alone in the typical compared French town.
Only 5.2% of households rent social housing (HLM) in Sardieu
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
Recent arrivals (under two years) make up nearly one in ten households; long-stayers (30 years or more) 17%. 4.9% of homes stand empty, a lower share than in 75% of compared French towns. In the typical compared French town, 12% of households rent social housing (HLM). Sardieu sits close to the norm on second homes: 2.8%, about the same as in the typical compared French town.
Half above, half below €25,680 a year in standard of living
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.
Half of residents live in households above €25,680 a year per consumption unit and half below; the level is lower than in 53% of compared French towns.
A higher share of households headed by a manual worker than 91% of compared French towns, at 22%
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
Against a figure of 32% in the typical compared French town, the share of households headed by a retired person in Sardieu comes in at 31%. For households headed by a manual worker, the comparison in the typical compared French town is 14%. In Sardieu, 6.1% of households are headed by a manager or professional.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
4.4% of residents are immigrants, fewer than in 69% 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.
Compared with 4.3% in the typical compared French town, 3.2% of residents are foreign nationals here. The share of immigrants in the typical compared French town is 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Sardieu: 46% of residents 15 and over are married, above 69% 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
Single residents account for 25%. The share of married residents in the typical compared French town is 43%.
Sardieu ranks below 73% of compared French towns on graduates of higher education: 24%
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
18% of adults out of school have no qualification, or about one in six. For graduates of higher education, the comparison in the typical compared French town is 30%.
The 2nd youngest of 41 French towns of 1,193 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
No nearby town is as young as Sardieu
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Sardieu | 39.2 | 15% | 2.8% | 4.4% |
| La Côte-Saint-André 4,873 · 2.8 mi | 46.7 | 27% | 3.4% | 12% |
| Saint-Siméon-de-Bressieux 3,186 · 3.4 mi | 44.2 | 24% | 2.6% | 8.6% |
| Saint-Étienne-de-Saint-Geoirs 3,425 · 6.6 mi | 43 | 23% | 4.4% | 6.8% |
| Beaurepaire 5,010 · 8.2 mi | 46.3 | 28% | 2% | 9.5% |
| Saint-Jean-de-Bournay 4,843 · 9.9 mi | 47.2 | 28% | 1.5% | 3% |
| Le Grand-Lemps 3,083 · 10.2 mi | 44.2 | 21% | 2.6% | 8.3% |
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 Sardieu
What is the population of Sardieu?
1,193 at INSEE’s 2023 census, 14% more than in 2012 (1,050).
How old are Sardieu’s residents?
The median age is 39.2, younger than 83% of compared French towns. 27% are under 18 and 15% 65 or older.
How many second homes are there in Sardieu?
14, with occasional dwellings: 2.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sardieu?
INSEE counts 53 immigrants (born abroad, not French at birth), 4.4% of residents, and 38 foreign nationals (3.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Sardieu?
€25,680 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.