A higher share of empty homes than 99% of compared French towns, at 20%
Compared with 30% in the typical compared French town, 5.6% of homes are flats here. 2.6% of households rent social housing (HLM), a lower share than in 95% of compared French towns. In 2023, the Census found 372 residents in Baye, living in 160 households. Locally, 6.6% of households are single parents.
Throughout this page, the Marne 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 Baye
Empty homes
The census found 43 homes empty (20%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Fewer residents than in 2012
Baye had 402 residents at the 2012 census and 372 in 2023, down 7%: slower growth than in 94% of compared French towns. Population ↓
An older town
Half of Baye’s residents are under 52.1 and half over; the median of compared French towns is 44. 30% are 65 or older (France median 22%), 8.1% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −7% since 2012, behind 94% 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
Against +5% for the median compared French town and −2% for the median Marne town, the change came in two steps: +2% from 2012 to 2017, then −9% to 2023.
6.7% of residents are 15 to 24, below 98% 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
■ Baye 52.1. The median compared French town: 44.
With a median age of 52.1, Baye is older than 89% of compared French towns. In the typical compared French town, 11% of residents are 15 to 24. Residents aged 65 and over come to 30% locally, about three in ten.
Women and men · all residents
53% women, 47% men
About 87 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Baye sits below 67% of compared French towns for one-person households (32%)
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 Marne median and the France median
Living alone · share
Where a quarter of households are couples with children in the typical compared French town, Baye has 23%. Set beside that, just over a third of households are one person living alone in the typical compared French town.
In Baye, 3.9% of households have no car, fewer than in 95% of compared French towns
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
Turnover: 6.6% of households moved in less than two years ago, and 26% have lived in their home 30 years or more. Measured more widely, 11% of households have no car in the typical compared French town. On second homes, Baye sits higher than 62% of compared French towns: 3.1%.
Per consumption unit, the median standard of living is €24,210 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 €24,210 a year per consumption unit, the median standard of living here is lower than in 69% of compared French towns.
A higher share of households headed by a retired person than 93% of compared French towns, at 45%
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
Here nearly a quarter of households are headed by a manual worker, where the figure in the typical compared French town is 14%. At the same time, households headed by a manager or professional are rarer here than in 99% of compared French towns. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Foreign nationals make up 6.3% in Baye, more than in 66% 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.
Immigrants make up about one in 15 here (6.6%). That is higher than in 50% of compared French towns; the median compared commune in Marne has 4.9%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Baye sits above 96% of compared French towns for married residents (52%)
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
Single residents: 23% here and 25% in the typical compared French town. By way of comparison, 43% of residents 15 and over are married in the typical compared French town.
Baye: 23% of adults out of school have no qualification, above 68% 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
The figure for graduates of higher education is 25% in Baye and 30% in the typical compared French town. Typically, 19% of adults out of school have no qualification in the typical compared French town.
Ranked by age, 9th oldest 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Every neighbor is younger than Baye
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Baye | 52.1 | 30% | 3.1% | 6.6% |
| Sézanne 4,576 · 9.4 mi | 50.7 | 30% | 3% | 8.3% |
| Montmirail 3,535 · 10.1 mi | 51.3 | 32% | 3.4% | 5.2% |
| Blancs-Coteaux 3,080 · 11.8 mi | 51.4 | 30% | 3.9% | 1.9% |
| Épernay 22,174 · 15.4 mi | 44 | 23% | 5.2% | 11% |
| Dormans 2,890 · 16.1 mi | 48.9 | 28% | 3.7% | 4.9% |
| Aÿ-Champagne 5,103 · 17.8 mi | 51.9 | 30% | 3.2% | 2.5% |
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 Baye
What is the population of Baye?
372 at INSEE’s 2023 census, 7% fewer than in 2012 (402).
How old are Baye’s residents?
The median age is 52.1, older than 89% of compared French towns. 17% are under 18 and 30% 65 or older.
How many second homes are there in Baye?
7, with occasional dwellings: 3.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Baye?
INSEE counts 24 immigrants (born abroad, not French at birth), 6.6% of residents, and 23 foreign nationals (6.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Baye?
€24,210 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.