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40.5median age
Who lives here · INSEE, census 2023

Couples with children make up 38% in Chassemy, more than in 98% of compared French towns

Households in social housing are rarer here than in 99% of compared French towns. Chassemy is home to 895 residents in 350 households, by the 2023 Census. The census found that 26% of households are headed by a manual worker here. With residents aged 65 and over at 17%, Chassemy is behind 84% of compared French towns on that count.

Throughout this page, the Aisne 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 · In brief

What stands out about the people of Chassemy

A town of families

38% of households are couples with children and 1.5% single parents with children; 21% of residents are under 15. Households ↓

Written from INSEE’s census 2023 on this page, against compared French towns.

Population

From 2012 to 2023, Chassemy outgrew 64% of compared French towns: +8%

Residents at INSEE’s last three censuses, each recast in the 2026 commune boundaries. France has no yearly estimate by commune between censuses.

Census 2012
827
residents
Census 2017
881
residents
Census 2023
895
residents
in today’s commune boundaries

2012 to 2023

Chassemy+8%
Aisne median−4%
France median+5%

2017 to 2023

Chassemy+2%
Aisne median−2%
France median+2%

Against +5% for the median compared French town and −4% for the median Aisne town, the change came in two steps: +7% from 2012 to 2017, then +2% to 2023.

Ages

Half of Chassemy is under 40.5, younger than 76% of compared French towns

Shares of residents by age at the 2023 census.

Age groups · share of residents

ChassemyAisne medianFrance median
Under 1521%
15 to 2410%
25 to 4425%
45 to 6428%
65 and over17%
of whom 80 and over3.4%
0%20%40%

Median age of the 3,798 compared French towns

2535455565

■ Chassemy 40.5. The median compared French town: 44.

Here 10% of residents are 15 to 24, where the figure in the typical compared French town is 11%.

Women and men · all residents

49% women, 51% men

Chassemy
Aisne median
France median
WomenMen

About 105 men for every 100 women. Median share of women: Aisne 52.5%, France 51.8%.

Households

Chassemy ranks below 99% of compared French towns on one-person households: 21%

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.

One person 21%Couple, no children 37%Couple with children 38%Single parent 1.5%Several people, not a family 1.5%

Against the Aisne median and the France median

Chassemy
Aisne median
France median
One personCouple, no childrenCouple with childrenSingle parentSeveral people, not a family

Living alone · share

ChassemyAisne medianFrance median
One-person households21%
Residents 65+ living alone25%
0%25%50%

Households average 2.6 people. The benchmark for one-person households in the typical compared French town: 35%. At 1.5%, the share of single-parent households is lower than in 99% of compared French towns.

Homes & cars

0.3% of homes are flats, 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

ChassemyAisne medianFrance median
Main residences92%
Second homes2.2%
Empty6.1%
0%50%100%

Type of home

Chassemy
Aisne median
France median
HousesFlats

Cars per household · share of households

ChassemyAisne medianFrance median
No car4%
One car34%
Two or more62%
0%35%70%

Of all households, 3.8% moved in during the last two years and 27% have stayed three decades or more. Lower than in 94% of compared French towns: 4% of households have no car. In the typical compared French town, 30% of homes are flats. Little separates the share of empty homes here, 6.1%, from the figure in the typical compared French town.

Income

At the median, €25,530 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.

Median standard of living
€25,530
a year, per consumption unit (2023)
Medians: Aisne €20,680 · France €25,970

Medians of compared communes. Source: INSEE, Filosofi 2023.

At €25,530 a year per consumption unit, the median standard of living here is lower than in 54% of compared French towns.

Households by occupation

Chassemy sits below 82% of compared French towns for households headed by a retired person (26%)

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

ChassemyAisne medianFrance median
Retired26%
Managers and professionals8.7%
Intermediate occupations19%
Clerical and service workers16%
Manual workers26%
Craftspeople, shopkeepers, business owners4.4%
Farmers0%
Others not working0%
0%20%40%
Unemployment rate
8.6%
of economically active residents 15 to 64 (census 2023)
Median of compared communes: 10.1%
Working residents
420
aged 15 or older

In Chassemy, nearly one in ten households are headed by a manager or professional. As a reference point, 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 and foreign nationals

In Chassemy, 1.8% of residents are immigrants, fewer than in 94% of compared French towns

INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.

Immigrants
16
1.8% of residents
Median of compared communes: 6.5%
Foreign nationals
9
1% of residents
Median of compared communes: 4.3%

Share of residents · census 2023

ChassemyAisne medianFrance median
Immigrants1.8%
Foreign nationals1%
0%5%10%

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.

By its share of foreign nationals (1%), Chassemy is below 94% of compared French towns. In the typical compared French town, the share of immigrants is 6.5%.

INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.

Couples

Single residents make up 20% in Chassemy, 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

ChassemyAisne medianFrance median
Married47%
In a civil partnership (PACS)7.9%
Living together, unmarried18%
Single20%
Divorced3.4%
Widowed4.5%
0%30%60%

Married residents make up 47%, against 43% in the typical compared French town. Single residents: 25% in the typical compared French town, for comparison.

Qualifications

In Chassemy, 22% of adults out of school hold a higher-education qualification, fewer than in 79% 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

ChassemyAisne medianFrance median
No diploma (or primary certificate)17%
Brevet7.5%
CAP or BEP (vocational)30%
Baccalauréat24%
Bac+29.8%
Bac+3 or bac+46.5%
Bac+5 or more5.7%
0%20%40%

The figure for adults with no qualification is 17% in Chassemy and 19% in the typical compared French town. In the typical compared French town, the share of graduates of higher education is 30%.

Towns its size

The 4th youngest of 41 French towns of 895 to 2,582 people

The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.

Chassemy 40.5
VillejustPrayssacLa Croix-en-Touraine
365064

Villejust is the youngest (37.2); Prayssac the oldest (62.3).

Neighbors

Chassemy is younger than every town around it

The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.

Villeneuve-Saint-GermainCrouyBelleuSoissonsFismesFère-en-TardenoisChassemy
Under 3838–4444–5050–5656+
TownMedian age65+Second homesImmigrants
Chassemy40.517%2.2%1.8%
Villeneuve-Saint-Germain
2,616 · 7 mi
42.321%1.3%12%
Crouy
3,049 · 7 mi
44.924%1.3%5.7%
Belleu
3,659 · 7.8 mi
51.531%1.4%11%
Soissons
28,046 · 8.3 mi
42.523%1.2%15%
Fismes
5,850 · 9.3 mi
43.623%1.5%3.1%
Fère-en-Tardenois
2,836 · 12.5 mi
47.828%1.9%3.3%
More about Chassemy

Health, work, housing and schools

How to read these numbers

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 Chassemy

What is the population of Chassemy?

895 at INSEE’s 2023 census, 8% more than in 2012 (827).

How old are Chassemy’s residents?

The median age is 40.5, younger than 76% of compared French towns. 25% are under 18 and 17% 65 or older.

How many second homes are there in Chassemy?

8, with occasional dwellings: 2.2% of all homes, against 2.1% for the median compared French town.

How many immigrants live in Chassemy?

INSEE counts 16 immigrants (born abroad, not French at birth), 1.8% of residents, and 9 foreign nationals (1%). The medians of compared French towns are 6.5% and 4.3%.

What is the median income in Chassemy?

€25,530 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.