Above 97% of compared French towns: 38% of households are couples with children
0.7% of homes are flats (typical compared French town: 30%). By contrast, on households headed by a manager or professional, Trigny sits higher than 94% of compared French towns: 26%. At the 2023 Census, 619 people lived locally, in 250 households. For Trigny, the census puts households without a car at 5.5%.
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 Trigny
A town of families
38% of households are couples with children and 3.9% single parents with children; 20% of residents are under 15. Households ↓
Growing fast
Trigny had 529 residents at the 2012 census and 619 in 2023, up 17%: faster growth than in 86% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Trigny grew +17% from 2012 to 2023, faster than 86% 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
Over the same years the median compared French town changed +5%, the median Marne town −2%. From 2012 to 2017 the change was +3%; from 2017 to 2023, +14%.
8.7% of residents are 15 to 24, below 86% 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
■ Trigny 42.9. The median compared French town: 44.
The median age in Trigny is 42.9, lower than in nearly three fifths of compared French towns. Roughly two in ten: just over a fifth of residents are 65 or over. To put it in context, 11% of residents are 15 to 24 in the typical compared French town.
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%.
Fewer one-person households than 97% of compared French towns: 23%
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
Each household has 2.4 people on average. 3.9% of households are single parents, a lower share than in 99% of compared French towns. In the typical compared French town, just over a third of households are one person living alone.
0.4% of households rent social housing (HLM), below 99% 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
Set against 2.1% in the typical compared French town, 4.2% of homes are second homes in Trigny. Here, 6.7% of homes stand empty. In the typical compared French town, just over one in ten households rent social housing (HLM).
Half of residents have a standard of living above €35,230 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 €35,230 a year per consumption unit, the median standard of living here is higher than in 96% of compared French towns.
A smaller share of households headed by a manual worker than 77% of compared French towns: 9.9%
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
32% of households are headed by a retired person in the typical compared French town, against 37% in Trigny. The usual figure: 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).
A lower share of immigrants than 92% of compared French towns, at 2%
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 Marne has 4.9%; immigrants here make up a share lower than in 92% of compared French towns. In the typical compared French town, the share of immigrants is 6.5%. Put another way, about one in 67: 1.5% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Fewer single residents than 98% of compared French towns: 18%
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
53% of residents 15 and over are married; in the typical compared French town the figure is 43%. For single residents, the comparison in the typical compared French town is 25%.
More graduates of higher education than 87% of compared French towns: 44%
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
In the typical compared French town, the share of adults with no qualification is 19%; Trigny has 13%. Measured more widely, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (619 to 2,582 people), the 11th youngest
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).
Trigny is younger than 4 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Trigny | 42.9 | 21% | 4.2% | 2% |
| Saint-Brice-Courcelles 3,566 · 4.9 mi | 47.2 | 25% | 0.6% | 3.9% |
| Tinqueux 10,771 · 5.7 mi | 44.4 | 24% | 0.8% | 6.1% |
| Reims 177,674 · 7 mi | 35.1 | 17% | 3.8% | 14% |
| Bezannes 5,039 · 7 mi | 31.7 | 15% | 2.6% | 7% |
| Bétheny 6,975 · 7.2 mi | 47.6 | 27% | 0.8% | 4.2% |
| Cormontreuil 6,534 · 8.9 mi | 50.9 | 31% | 0.8% | 4.9% |
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 Trigny
What is the population of Trigny?
619 at INSEE’s 2023 census, 17% more than in 2012 (529).
How old are Trigny’s residents?
The median age is 42.9, younger than 59% of compared French towns. 24% are under 18 and 21% 65 or older.
How many second homes are there in Trigny?
12, with occasional dwellings: 4.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Trigny?
INSEE counts 12 immigrants (born abroad, not French at birth), 2% of residents, and 9 foreign nationals (1.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Trigny?
€35,230 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.