Photo: G.Garitan · CC BY-SA 4.0Households without a car make up 2.7% in Saint-Lyé, less than in 99% of compared French towns
The share of residents aged 15 to 24 trails 92% of compared French towns: 8.1%. The 2023 Census put Saint-Lyé’s population at 2,956, in 1,280 households. One-person households account for 25%. Households in social housing are rarer here than in 86% of compared French towns.
Throughout this page, the Aube 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.
Slower than most: +2% since 2012, behind 60% 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 +1%, and from 2017 to 2023 +1%; the median compared French town changed +5% and the median Aube town +2%.
Older than 73% of compared French towns: half of Saint-Lyé 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-Lyé 47.7. The median compared French town: 44.
The figure for residents aged 65 and over is 25% in Saint-Lyé and 22% in the typical compared French town.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Aube 52.1%, France 51.8%.
Saint-Lyé sits below 99% of compared French towns for single-parent households (4%)
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 Aube median and the France median
Living alone · share
30% of households are couples with children; in the typical compared French town the figure is 25%. The comparison figure for single-parent households is 10% in the typical compared French town. On average, 2.3 people share a household.
Saint-Lyé sits below 99% of compared French towns for flats (2.3%)
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
1.1% of homes are second homes; in the typical compared French town the figure is 2.1%. Lower than in 86% of compared French towns: 4.1% of homes stand empty. As a yardstick, 30% of homes are flats in the typical compared French town.
At the median, €28,440 a year to live on
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 €28,440 a year per consumption unit, the median standard of living here is higher than in 74% of compared French towns. Below the poverty line: 5.0% of residents.
Saint-Lyé: 37% of households are headed by a retired person, above 73% 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
Against a figure of 9.4% in the typical compared French town, the share of households headed by a manager or professional in Saint-Lyé comes in at 14%. For comparison, nearly a third of households are headed by a retired person in the typical compared French town. Roughly one in ten: 10% 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).
Foreign nationals: 1.9%, a lower share than 81% 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 Aube has 9.2%; immigrants here make up a share lower than in 63% of compared French towns. Here, 5% of residents are immigrants. The wider picture: 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.
Single residents make up 20% in Saint-Lyé, less than in 93% 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
48% of residents 15 and over are married (typical compared French town: 43%). The benchmark for single residents in the typical compared French town: 25%.
Graduates of higher education: 31%, a higher share than 53% 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
On the census count, 19% of adults out of school have no qualification. For graduates of higher education, the comparison in the typical compared French town is 30%.
Of 41 French towns its size (2,923 to 2,989 people), the 21st 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 Gorcy (40.5), the oldest Vimoutiers (60.1).
Every neighbor is younger than Saint-Lyé
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Saint-Lyé | 47.7 | 25% | 1.1% | 5% |
| La Chapelle-Saint-Luc 12,648 · 3.7 mi | 36.3 | 19% | 1.1% | 24% |
| Les Noës-près-Troyes 3,261 · 4.2 mi | 43.8 | 25% | 0.8% | 15% |
| Sainte-Savine 10,289 · 4.8 mi | 46 | 24% | 2.2% | 8.1% |
| La Rivière-de-Corps 3,692 · 5.1 mi | 44.6 | 25% | 0.9% | 6% |
| Pont-Sainte-Marie 5,249 · 5.4 mi | 43.8 | 26% | 0.8% | 13% |
| Troyes 62,088 · 5.4 mi | 36.5 | 19% | 6.2% | 16% |
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-Lyé
What is the population of Saint-Lyé?
2,956 at INSEE’s 2023 census, 2% more than in 2012 (2,889).
How old are Saint-Lyé’s residents?
The median age is 47.7, older than 73% of compared French towns. 19% are under 18 and 25% 65 or older.
How many second homes are there in Saint-Lyé?
15, with occasional dwellings: 1.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Lyé?
INSEE counts 150 immigrants (born abroad, not French at birth), 5% of residents, and 56 foreign nationals (1.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Lyé?
€28,440 a year per consumption unit in 2023 (median of compared French towns €25,970); 5.0% 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.