38% of households are couples with children, a share 97% of compared French towns don’t reach
In the typical compared French town, the share of households without a car is 11%; Serpaize has 1.4%. At 8%, the share of households headed by a manual worker is lower than in 87% of compared French towns. The town is home to 2,091 residents in 810 households, by the 2023 Census. The share of residents aged 15 to 24 stands at 8.4%.
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 Serpaize
A town of families
38% of households are couples with children and 6.8% single parents with children; 23% of residents are under 15. Households ↓
Growing fast
Serpaize had 1,564 residents at the 2012 census and 2,091 in 2023, up 34%: faster growth than in 98% of compared French towns. Population ↓
A young town
Half of Serpaize’s residents are under 38.6 and half over; the median of compared French towns is 44. 23% are under 15 and 16% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A growing town: +34% since 2012, faster than 98% 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 median Isère town changed +7% and the median compared French town +5%; here the first five years brought +24% and the next six +8%.
A median age of 38.6: Serpaize is younger than 86% 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
■ Serpaize 38.6. The median compared French town: 44.
Where 22% of residents are 65 or over in the typical compared French town, Serpaize has 16%.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
One-person households make up 22% in Serpaize, less than in 99% of compared French towns
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
Households here average 2.5 people each. Fewer single-parent households than in 92% of compared French towns: 6.8%. The usual figure: just over a third of households are one person living alone in the typical compared French town.
2.9% of homes stand empty, below 96% 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
In the last two years, one in ten households moved in; at the other end, 21% have stayed 30 years or more. As a yardstick, 6.7% of homes stand empty in the typical compared French town. Serpaize has fewer households in social housing than 92% of compared French towns, at 3.6%. What’s more, by its share of flats (15%), Serpaize is below 77% of compared French towns.
Per consumption unit, the median standard of living is €32,020 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.
Per consumption unit, half of residents live on more than €32,020 a year: higher than in 91% of compared French towns.
Serpaize: 15% of households are headed by a manager or professional, above 75% 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
By its share of households headed by a retired person (29%), Serpaize is below 70% of compared French towns. Against 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).
Serpaize ranks below 86% of compared French towns on foreign nationals: 1.5%
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.
By its share of immigrants (3.5%), Serpaize is below 78% of compared French towns. On average, 4.3% of residents are foreign nationals 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.
18% of residents 15 and over are single, fewer than in 97% 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
Married residents make up 51%, against 43% in the typical compared French town. As a reference point, 25% of residents 15 and over are single in the typical compared French town.
A larger share of graduates of higher education than 86% of compared French towns: 44%
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 the typical compared French town, nearly a fifth of adults out of school have no qualification; in Serpaize, 12%. The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Among 41 French towns of 2,091 to 2,582 people, the 2nd 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Older than Serpaize: 5 of the 6 towns nearby
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Serpaize | 38.6 | 16% | 1.1% | 3.5% |
| Pont-Évêque 6,213 · 1.9 mi | 37.2 | 18% | 0.9% | 20% |
| Vienne 31,778 · 3 mi | 40.2 | 20% | 1.7% | 15% |
| Estrablin 3,677 · 3.8 mi | 45.5 | 24% | 0.9% | 4.9% |
| Saint-Just-Chaleyssin 2,695 · 4.4 mi | 43.5 | 19% | 1.5% | 2.9% |
| Chaponnay 4,548 · 5 mi | 43.4 | 20% | 2.7% | 4.3% |
| Communay 4,540 · 5.2 mi | 43.5 | 20% | 0.9% | 5.5% |
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 Serpaize
What is the population of Serpaize?
2,091 at INSEE’s 2023 census, 34% more than in 2012 (1,564).
How old are Serpaize’s residents?
The median age is 38.6, younger than 86% of compared French towns. 27% are under 18 and 16% 65 or older.
How many second homes are there in Serpaize?
9, with occasional dwellings: 1.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Serpaize?
INSEE counts 73 immigrants (born abroad, not French at birth), 3.5% of residents, and 32 foreign nationals (1.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Serpaize?
€32,020 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.