Households without a car: 2.1%, a lower share than 99% of compared French towns
Where 14% of households are headed by a manual worker in the typical compared French town, Saint-Sérotin has 31%. The town is home to 596 residents in 250 households, by the 2023 Census. Locally, 9.8% of homes are second homes. Residents aged 65 and over are rarer here than in 92% of compared French towns.
Throughout this page, the Yonne 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 Saint-Sérotin
A town of families
35% of households are couples with children and 6.3% 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 +9% change since 2012: faster than 66% 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 +2%, and from 2017 to 2023 +7%; the median compared French town changed +5% and the median Yonne town −4%.
Saint-Sérotin is younger than 64% of compared French towns: a median age of 42.2
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Saint-Sérotin 42.2. The median compared French town: 44.
Residents aged 15 to 24 make up about one in nine here (11%).
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Yonne 52.2%, France 51.8%.
A higher share of couples with children than 93% of compared French towns, at 35%
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 Yonne median and the France median
Living alone · share
Here 6.3% of households are single parents, where the figure in the typical compared French town is 10%. To put it in context, a quarter of households are couples with children in the typical compared French town. The share of one-person households stands at 27%.
A smaller share of flats than 99% of compared French towns: 2.1%
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
6.2% of households moved in less than two years ago; 16% have been in their home 30 years or more. Saint-Sérotin has fewer empty homes than 56% of compared French towns, at 6.3%.
Half of residents have a standard of living above €27,490 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.
Half of residents live in households above €27,490 a year per consumption unit and half below; the level is higher than in 66% of compared French towns.
27% of households are headed by a retired person, fewer than in 77% 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
13% of households are headed by a manager or professional, against 9.4% in the typical compared French town. By way of comparison, 32% of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
In Saint-Sérotin, 3.2% of residents are foreign nationals, fewer than in 61% 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.
The median compared commune in Yonne has 9.2%; immigrants here make up a share lower than in nearly three fifths of compared French towns. The share of foreign nationals in the typical compared French town is 4.3%. Census figures put immigrants at 5.5% in Saint-Sérotin.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
In Saint-Sérotin, 21% of residents 15 and over are single, fewer than in 88% 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
On the census count, 44% of residents 15 and over are married. The benchmark for single residents in the typical compared French town: 25%.
Graduates of higher education: 24%, a lower share than 73% 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
Adults with no qualification come to 18% in Saint-Sérotin, about two in ten. Graduates of higher education make up 30% in the typical compared French town.
Ranked by age, 9th youngest of 41 French towns this size
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Saint-Sérotin and its 6 nearest towns: 5 of them are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Saint-Sérotin | 42.2 | 14% | 9.8% | 5.5% |
| Pont-sur-Yonne 3,391 · 3.3 mi | 45.2 | 27% | 5.9% | 9.2% |
| Paron 4,834 · 6.1 mi | 43.3 | 22% | 1.5% | 12% |
| Saint-Clément 2,849 · 6.6 mi | 49.6 | 30% | 2.1% | 14% |
| Sens 27,106 · 7 mi | 42.1 | 23% | 2.6% | 20% |
| Villeneuve-la-Guyard 3,455 · 7.8 mi | 42.3 | 19% | 4.2% | 7.8% |
| Cannes-Écluse 2,742 · 11.4 mi | 43.5 | 24% | 2% | 7.8% |
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-Sérotin
What is the population of Saint-Sérotin?
596 at INSEE’s 2023 census, 9% more than in 2012 (547).
How old are Saint-Sérotin’s residents?
The median age is 42.2, younger than 64% of compared French towns. 24% are under 18 and 14% 65 or older.
How many second homes are there in Saint-Sérotin?
29, with occasional dwellings: 9.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Sérotin?
INSEE counts 33 immigrants (born abroad, not French at birth), 5.5% of residents, and 19 foreign nationals (3.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Sérotin?
€27,490 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.