Photo: Zéphyrios · CC0A lower share of households headed by a manager or professional than 98% of compared French towns, at 2.6%
Residents aged 65 and over make up 28%, against 22% in the typical compared French town. At the 2023 Census Saint-Florentin was home to 4,164 people in 1,950 households. Households without a car make up about one in four here (24%). Few places have as many households in social housing: 25% here, more than in 86% 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-Florentin
Fewer residents than in 2012
Saint-Florentin had 4,733 residents at the 2012 census and 4,164 in 2023, down 12%: slower growth than in 98% of compared French towns. Population ↓
Immigrants
INSEE counts 800 immigrants in Saint-Florentin (people born abroad who weren’t French at birth, whatever their nationality now): 18% of residents, against 9.2% for the median compared commune in Yonne. 13% are foreign nationals. Immigrants and foreign nationals ↓
Empty homes
The census found 440 homes empty (18%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Saint-Florentin’s population moved −12% on 2012, less than in 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
In two steps, −8% to 2017 and −5% after, the town’s change compares with +5% for the median compared French town and −4% in Yonne.
Older than 73% of compared French towns: half of Saint-Florentin is over 47.7
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Saint-Florentin 47.7. The median compared French town: 44.
The share of residents aged 15 to 24 stands at 10%.
Women and men · all residents
51% women, 49% men
About 94 men for every 100 women. Median share of women: Yonne 52.2%, France 51.8%.
Saint-Florentin sits above 83% of compared French towns for one-person households (45%)
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
In Saint-Florentin, 19% of households are couples with children, beside 25% in the typical compared French town. The benchmark for one-person households in the typical compared French town: 35%. On average, 2.1 people share a household. Higher than in nearly three fifths of compared French towns: 11% of households are single parents.
Saint-Florentin sits above 98% of compared French towns for empty homes (18%)
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
14% of households moved in less than two years ago; 20% have been in their home 30 years or more. Saint-Florentin has more flats than two thirds of compared French towns, at 43%. For comparison, 6.7% of homes stand empty in the typical compared French town. Here 3.5% of homes are second homes, where the figure in the typical compared French town is 2.1%.
€19,880 a year: the median 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 €19,880 a year per consumption unit and half below; the level is lower than in 97% of compared French towns. Living below the poverty line: 31.0% of residents.
29% of households are headed by a manual worker, more than in 99% 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
The share of households headed by a retired person is 38%, against 32% in the typical compared French town. The wider picture: 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).
Above 91% of compared French towns: 18% of residents are immigrants
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.
Foreign nationals: 13% here and 4.3% in the typical compared French town. Measured more widely, 6.5% of residents are immigrants 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.
Above 62% of compared French towns: 27% of residents 15 and over are single
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 married residents, Saint-Florentin sits lower than 57% of compared French towns: 42%. Typically, 25% of residents 15 and over are single in the typical compared French town.
A lower share of graduates of higher education than 99% of compared French towns, at 13%
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
By its share of adults with no qualification (41%), Saint-Florentin is above 99% of compared French towns. Graduates of higher education: 30% in the typical compared French town, for comparison.
Of 41 French towns its size (4,130 to 4,194 people), the 14th oldest
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 Salouël (32.5), the oldest Le Pouliguen (67.6).
A younger town than 2 of the 6 around it: Saint-Florentin
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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-Florentin
What is the population of Saint-Florentin?
4,164 at INSEE’s 2023 census, 12% fewer than in 2012 (4,733).
How old are Saint-Florentin’s residents?
The median age is 47.7, older than 73% of compared French towns. 21% are under 18 and 28% 65 or older.
How many second homes are there in Saint-Florentin?
87, with occasional dwellings: 3.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Florentin?
INSEE counts 760 immigrants (born abroad, not French at birth), 18% of residents, and 540 foreign nationals (13%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Florentin?
€19,880 a year per consumption unit in 2023 (median of compared French towns €25,970); 31.0% 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.