Below 99% of compared French towns: 1.1% of households have no car
Here nearly one in ten residents are 15 to 24, where the figure in the typical compared French town is 11%. In 2023, the Census found 210 residents in Châtillon-sur-Morin, living in 89 households. Put another way, about one in five: 22% of households are headed by a manual worker. 28% of households are one person living alone, a lower share than in 86% of compared French towns.
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 Châtillon-sur-Morin
One home in six is a second home
The census counted 21 second homes and occasional dwellings in Châtillon-sur-Morin, 16% of its 130 homes: higher than in 92% 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 23 homes empty (17%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Châtillon-sur-Morin ranks above 98% of compared French towns on empty homes: 17%
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
The share of second homes tops 92% of compared French towns: 16%. By contrast, households in social housing are rarer here than in 99% of compared French towns. Empty homes: 6.7% in the typical compared French town, for comparison. Nearly a quarter of households have been in place 30 years or more; 6.8% moved in within the last two years.
+12% since 2012, a pace 76% of compared French towns didn’t match
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 first five years brought +16%; the six to 2023, −3%. For comparison, the median compared French town changed +5% and the median Marne town −2%.
Older than 66% of compared French towns: half of Châtillon-sur-Morin is over 46.5
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Châtillon-sur-Morin 46.5. The median compared French town: 44.
Residents aged 65 and over come to 22% in Châtillon-sur-Morin, about two in ten.
Women and men · all residents
48% women, 52% men
About 110 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
Châtillon-sur-Morin sits above 64% of compared French towns for couples with children (28%)
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
The share of single-parent households is 11%, against 10% in the typical compared French town. For couples with children, the comparison in the typical compared French town is 25%. On average, 2.4 people share a household.
€25,630 a year: the median standard of living
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.
Per consumption unit, half of residents live on more than €25,630 a year: lower than in 53% of compared French towns.
Fewer households headed by a retired person than 75% of compared French towns: 28%
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
Households headed by a manager or professional are rarer here than in 99% of compared French towns. Typically, 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).
A smaller share of immigrants than 88% of compared French towns: 2.4%
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.
Foreign nationals: 1.4%, below 87% of compared French towns. For immigrants, the comparison in the typical compared French town is 6.5%. The median compared commune in Marne has 4.9%; immigrants here make up a share lower than in 88% of compared French towns.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
15% of residents 15 and over are single, fewer than in 99% 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 54% in Châtillon-sur-Morin. Single residents make up 25% in the typical compared French town.
In Châtillon-sur-Morin, 16% of adults out of school hold a higher-education qualification, fewer than in 95% 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 adults with no qualification is 21% in Châtillon-sur-Morin and 19% in the typical compared French town. As a reference point, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 210 to 2,582 people: this is the 18th 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).
Nearby, 2 of 6 towns have older populations than Châtillon-sur-Morin
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Châtillon-sur-Morin | 46.5 | 22% | 16% | 2.4% |
| Sézanne 4,576 · 6.8 mi | 50.7 | 30% | 3% | 8.3% |
| Villenauxe-la-Grande 2,605 · 8.1 mi | 41.3 | 22% | 3.5% | 9.4% |
| Montmirail 3,535 · 11.4 mi | 51.3 | 32% | 3.4% | 5.2% |
| La Ferté-Gaucher 4,743 · 13.4 mi | 42.3 | 24% | 1.3% | 12% |
| Romilly-sur-Seine 14,959 · 15.1 mi | 42.8 | 23% | 2.7% | 17% |
| Nogent-sur-Seine 5,537 · 15.2 mi | 42.5 | 22% | 6.5% | 13% |
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 Châtillon-sur-Morin
What is the population of Châtillon-sur-Morin?
210 at INSEE’s 2023 census, 12% more than in 2012 (187).
How old are Châtillon-sur-Morin’s residents?
The median age is 46.5, older than 66% of compared French towns. 25% are under 18 and 22% 65 or older.
How many second homes are there in Châtillon-sur-Morin?
21, with occasional dwellings: 16% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Châtillon-sur-Morin?
INSEE counts 5 immigrants (born abroad, not French at birth), 2.4% of residents, and 3 foreign nationals (1.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Châtillon-sur-Morin?
€25,630 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 9, 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.