Trépail ranks below 96% of compared French towns on flats: 4.4%
5.6% of households are headed by a manager or professional, against 9.4% in the typical compared French town. There were 180 households in Trépail at the 2023 Census, home to 424 residents. One-person households come to 29% locally, about three in ten. This Marne town has more empty homes than nearly four fifths of compared French towns, at 10%.
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 Trépail
One home in seven is a second home
The census counted 35 second homes and occasional dwellings in Trépail, 14% of its 240 homes: higher than in 91% of compared French towns. 81% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
14% of homes are second homes, more than in 91% 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
In the typical compared French town, the share of households in social housing is 12%; Trépail has 6.7%. Households without a car account for 7.1%. Elsewhere, 2.1% of homes are second homes in the typical compared French town.
Trépail changed by −1% from 2012 to 2023, slower than 74% 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
For comparison, the median compared French town changed +5% and the median Marne town −2%.
Half of Trépail is under 42.7, younger than 60% 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
■ Trépail 42.7. The median compared French town: 44.
Residents aged 15 to 24 make up about one in nine here (11%). At 22%, the share of residents aged 65 and over is higher than in 51% of compared French towns.
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
Trépail ranks above 93% of compared French towns on single-parent households: 14%
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
Households average 2.3 people. As a reference point, 10% of households are single parents in the typical compared French town. More couples with children than in 54% of compared French towns: 26%.
Median standard of living: €30,520 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 Trépail is €30,520 a year per consumption unit: higher than in 87% of compared French towns.
A lower share of households headed by a retired person than 65% of compared French towns, at 30%
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
On households headed by a manual worker, Trépail sits higher than 52% of compared French towns: 14%. Across the comparison, nearly a third 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).
Immigrants make up 1.4% in Trépail, less than in 97% 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.
In the typical compared French town, 4.3% of residents are foreign nationals; in Trépail, 0.2%. For immigrants, the comparison in the typical compared French town is 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents: 23%, a lower share than 68% 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
43% of residents 15 and over are married in the typical compared French town, against 45% in Trépail. Single residents: 25% in the typical compared French town, for comparison.
A smaller share of graduates of higher education than 80% of compared French towns: 22%
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 share of adults with no qualification stands at 20%. Against that, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
10th lowest median age among 41 French towns of 424 to 2,582
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).
Older than Trépail: 3 of the 6 towns nearby
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trépail | 42.7 | 22% | 14% | 1.4% |
| Aÿ-Champagne 5,103 · 8.3 mi | 51.9 | 30% | 3.2% | 2.5% |
| Mourmelon-le-Grand 4,895 · 8.4 mi | 30.8 | 11% | 1.2% | 2.5% |
| Cormontreuil 6,534 · 9.8 mi | 50.9 | 31% | 0.8% | 4.9% |
| Épernay 22,174 · 11.2 mi | 44 | 23% | 5.2% | 11% |
| Bezannes 5,039 · 11.5 mi | 31.7 | 15% | 2.6% | 7% |
| Reims 177,674 · 12 mi | 35.1 | 17% | 3.8% | 14% |
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 Trépail
What is the population of Trépail?
424 at INSEE’s 2023 census, about the same as in 2012 (428).
How old are Trépail’s residents?
The median age is 42.7, younger than 60% of compared French towns. 22% are under 18 and 22% 65 or older.
How many second homes are there in Trépail?
35, with occasional dwellings: 14% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trépail?
INSEE counts 6 immigrants (born abroad, not French at birth), 1.4% of residents, and 1 foreign nationals (0.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trépail?
€30,520 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.