Above 94% of compared French towns: 36% of households are couples with children
Households headed by a manager or professional: 20%, above 89% of compared French towns. The 2023 Census counted 2,248 residents in 910 households. About one in 32: that is how common households without a car are in Seyssuel (3.1%). At 7.2%, the share of households in social housing is lower than in three quarters 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.
What stands out about the people of Seyssuel
A town of families
36% of households are couples with children and 7.5% single parents with children; 19% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A growing town: +12% since 2012, faster than 74% 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 first five years brought ±0%; the six to 2023, +12%. For comparison, the median compared French town changed +5% and the median Isère town +7%.
Below 58% of compared French towns: 10% 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
■ Seyssuel 44.2. The median compared French town: 44.
The median age in Seyssuel is 44.2, higher than in just over half of compared French towns. The wider picture: 11% of residents are 15 to 24 in the typical compared French town. Census figures put residents aged 65 and over at 22% in the town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
Seyssuel sits below 98% of compared French towns for one-person households (22%)
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
A household here holds 2.5 people on average. Single-parent households are rarer here than in 85% of compared French towns. Elsewhere, just over a third of households are one person living alone in the typical compared French town.
Seyssuel ranks below 75% of compared French towns on flats: 16%
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
Seyssuel sits close to the norm on second homes: 1.4%, about the same as in the typical compared French town. Here, 5.2% of homes stand empty. By way of comparison, 30% of homes are flats in the typical compared French town.
A median standard of living of €32,870 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.
At €32,870 a year per consumption unit, the median standard of living here is higher than in 93% of compared French towns. The share living below the poverty line is 6.0%.
Seyssuel ranks below 79% of compared French towns on households headed by a manual worker: 9.6%
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 retired person: 30%, below 64% of compared French towns. Set beside 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).
Seyssuel ranks below 76% of compared French towns on foreign nationals: 2.2%
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.
Set against 6.5% in the typical compared French town, 4.9% of residents are immigrants in Seyssuel. That is lower than in 64% of compared French towns; the median compared commune in Isère has 8%. Elsewhere, 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.
A larger share of married residents than 97% of compared French towns: 53%
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 single residents trails 96% of compared French towns: 19%. For comparison, 43% of residents 15 and over are married in the typical compared French town.
11% of adults out of school have no qualification, below 91% 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
The share of graduates of higher education tops 87% of compared French towns: 45%. The wider picture: nearly a fifth of adults out of school have no qualification in the typical compared French town.
41 French towns of 2,248 to 2,582 people: this is the 16th 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
No nearby town is as old as Seyssuel
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Seyssuel | 44.2 | 22% | 1.4% | 4.9% |
| Loire-sur-Rhône 2,746 · 2.2 mi | 41.7 | 19% | 1% | 4.8% |
| Chasse-sur-Rhône 6,588 · 2.6 mi | 36.3 | 16% | 0.8% | 14% |
| Vienne 31,778 · 2.7 mi | 40.2 | 20% | 1.7% | 15% |
| Communay 4,540 · 3.3 mi | 43.5 | 20% | 0.9% | 5.5% |
| Ternay 5,596 · 3.6 mi | 42.7 | 20% | 0.7% | 6.8% |
| Pont-Évêque 6,213 · 3.8 mi | 37.2 | 18% | 0.9% | 20% |
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 Seyssuel
What is the population of Seyssuel?
2,248 at INSEE’s 2023 census, 12% more than in 2012 (2,013).
How old are Seyssuel’s residents?
The median age is 44.2, older than 51% of compared French towns. 23% are under 18 and 22% 65 or older.
How many second homes are there in Seyssuel?
13, with occasional dwellings: 1.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Seyssuel?
INSEE counts 110 immigrants (born abroad, not French at birth), 4.9% of residents, and 49 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Seyssuel?
€32,870 a year per consumption unit in 2023 (median of compared French towns €25,970); 6.0% 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.