Les Sièges ranks below 99% of compared French towns on flats: 0.4%
In the typical compared French town, 9.4% of households are headed by a manager or professional; in Les Sièges, 5%. Its 200 households held 439 residents at the 2023 Census. Locally, 7.5% of households are single parents. Few places have so few residents aged 15 to 24: 7.7% here, fewer than in 94% 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 Les Sièges
One home in 10 is a second home
The census counted 27 second homes and occasional dwellings in Les Sièges, 10% of its 270 homes: higher than in 88% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Empty homes
The census found 35 homes empty (13%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A higher share of second homes than 88% of compared French towns, at 10%
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
Compared with 11% in the typical compared French town, 7.8% of households have no car here. To put it in context, 2.1% of homes are second homes in the typical compared French town. Census figures put empty homes at 13% in Les Sièges. Households in social housing are rarer here than in 99% of compared French towns.
+1% since 2012, a pace below 65% 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 Yonne town changed −4% and the median compared French town +5%; here the first five years brought −5% and the next six +6%.
A median age of 47.6: Les Sièges is older than 73% 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
■ Les Sièges 47.6. The median compared French town: 44.
Against a figure of 22% in the typical compared French town, the share of residents aged 65 and over in Les Sièges comes in at 21%.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Yonne 52.2%, France 51.8%.
Couples with children make up 30% in Les Sièges, more than in 75% 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 Yonne median and the France median
Living alone · share
Households average 2.2 people. On one-person households, Les Sièges sits lower than 64% of compared French towns: 33%. In the typical compared French town, the share of couples with children is 25%.
Per consumption unit, the median standard of living is €24,040 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.
The median standard of living in Les Sièges is €24,040 a year per consumption unit: lower than in 71% of compared French towns.
Les Sièges sits below 76% of compared French towns for households headed by a retired person (27%)
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
17% of households are headed by a manual worker; in the typical compared French town the figure is 14%. Households headed by a retired person make up 32% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Les Sièges ranks below 85% of compared French towns on foreign nationals: 1.6%
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.
Immigrants make up a share lower than in 63% of compared French towns; the median compared commune in Yonne has 9.2%. Set beside that, 4.3% of residents are foreign nationals in the typical compared French town. On the census count, 5% of residents are immigrants.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Les Sièges sits below 68% of compared French towns for single residents (23%)
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
Here, 44% of residents 15 and over are married. In the typical compared French town, the share of single residents is 25%.
Graduates of higher education: 20%, a lower share than 86% 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
More adults with no qualification than in 54% of compared French towns: 20%. The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 439 to 2,582 people: this is the 15th 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Median age: 3 of the 6 towns around Les Sièges 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 |
|---|---|---|---|---|
| Les Sièges | 47.6 | 21% | 10% | 5% |
| Aix-Villemaur-Pâlis 3,236 · 10.2 mi | 51.4 | 31% | 9.7% | 2.8% |
| Sens 27,106 · 10.6 mi | 42.1 | 23% | 2.6% | 20% |
| Saint-Clément 2,849 · 10.7 mi | 49.6 | 30% | 2.1% | 14% |
| Villeneuve-sur-Yonne 5,135 · 12.3 mi | 49.9 | 29% | 7.5% | 6.3% |
| Paron 4,834 · 12.4 mi | 43.3 | 22% | 1.5% | 12% |
| Brienon-sur-Armançon 3,032 · 13.6 mi | 47 | 25% | 7.3% | 6.1% |
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 Les Sièges
What is the population of Les Sièges?
439 at INSEE’s 2023 census, 1% more than in 2012 (434).
How old are Les Sièges’ residents?
The median age is 47.6, older than 73% of compared French towns. 20% are under 18 and 21% 65 or older.
How many second homes are there in Les Sièges?
27, with occasional dwellings: 10% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Les Sièges?
INSEE counts 22 immigrants (born abroad, not French at birth), 5% of residents, and 7 foreign nationals (1.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Les Sièges?
€24,040 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.