Cessieu sits above 96% of compared French towns for couples with children (37%)
Where just over one in ten households have no car in the typical compared French town, Cessieu has 4.8%. The median age in the town is 40.2, lower than in 78% of compared French towns. There were 1,290 households locally at the 2023 Census, home to 3,259 residents. Here, 28% of households are headed by a retired person.
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 Cessieu
A town of families
37% of households are couples with children and 8.8% single parents with children; 22% of residents are under 15. Households ↓
Growing fast
Cessieu had 2,679 residents at the 2012 census and 3,259 in 2023, up 22%: faster growth than in 92% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Growth of +22% since 2012 puts Cessieu ahead of 92% 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
From 2012 to 2017 the population moved +11%, and from 2017 to 2023 +9%; the median compared French town changed +5% and the median Isère town +7%.
Residents aged 65 and over make up 16% in Cessieu, less than in 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
■ Cessieu 40.2. The median compared French town: 44.
Residents aged 15 to 24: 9.8%, below two thirds of compared French towns. The usual figure: 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
23% of households are one person living alone, fewer than in 97% 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
The share of single-parent households is 8.8%, against 10% in the typical compared French town. In the typical compared French town, one-person households come to 35%. On average, 2.5 people share a household.
A smaller share of flats than 78% of compared French towns: 15%
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
Households that moved in under two years ago: 12%. Those in their home 30 years or more: 20%. 8.4% of households rent social housing (HLM), fewer than in 69% of compared French towns. Compared with 6.7% in the typical compared French town, 5.3% of homes stand empty here.
A typical living standard of €28,360 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 €28,360 a year per consumption unit, the median standard of living here is higher than in 74% of compared French towns. Some 7.0% of residents fall below the poverty line.
A higher share of households headed by a manual worker than 70% of compared French towns, at 17%
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
On the census count, 10% of households are headed by a manager or professional. In the typical compared French town, 14% of households are headed by a manual worker.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A smaller share of immigrants than 65% of compared French towns: 4.8%
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.
3% of residents are foreign nationals, against 4.3% in the typical compared French town. 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.
Above 95% of compared French towns: 51% of residents 15 and over are married
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, the share of single residents is 25%; Cessieu has 19%. Set beside that, 43% of residents 15 and over are married in the typical compared French town.
Fewer graduates of higher education than 58% of compared French towns: 28%
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
Adults with no qualification make up about one in five here (19%). To put it in context, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 4th youngest of 41 French towns of 3,230 to 3,289 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.
The youngest is Lespinasse (36.5), the oldest Jard-sur-Mer (68.1).
Cessieu is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cessieu | 40.2 | 16% | 1.9% | 4.8% |
| Ruy-Montceau 4,805 · 2.6 mi | 47.1 | 22% | 1.1% | 5.1% |
| La Tour-du-Pin 8,111 · 3.2 mi | 42 | 22% | 1.7% | 17% |
| Nivolas-Vermelle 2,706 · 3.6 mi | 42.1 | 19% | 2.1% | 6.3% |
| Saint-Clair-de-la-Tour 3,628 · 5 mi | 42.5 | 19% | 1.9% | 7.9% |
| Saint-Chef 3,921 · 5 mi | 43.3 | 19% | 2.1% | 4.1% |
| Saint-Savin 4,323 · 5 mi | 43.8 | 18% | 1.3% | 3.7% |
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 Cessieu
What is the population of Cessieu?
3,259 at INSEE’s 2023 census, 22% more than in 2012 (2,679).
How old are Cessieu’s residents?
The median age is 40.2, younger than 78% of compared French towns. 26% are under 18 and 16% 65 or older.
How many second homes are there in Cessieu?
27, with occasional dwellings: 1.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cessieu?
INSEE counts 160 immigrants (born abroad, not French at birth), 4.8% of residents, and 97 foreign nationals (3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cessieu?
€28,360 a year per consumption unit in 2023 (median of compared French towns €25,970); 7.0% 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 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.