Cernon sits above 99% of compared French towns for couples with children (40%)
Compared with 30% in the typical compared French town, 1.5% of homes are flats here. Across Cernon, 5% of residents are 15 to 24. Households headed by a manager or professional are more common here than in 97% of compared French towns. Census day 2023: 131 residents and 50 households in the town.
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 Cernon
A town of families
40% of households are couples with children and 10% single parents with children; 25% of residents are under 15. Households ↓
Empty homes
The census found 7 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −2% since 2012, behind 76% 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
Medians for comparison: +5% across compared French towns, −2% in Marne.
A median age of 39.6: Cernon is younger than 81% 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
■ Cernon 39.6. The median compared French town: 44.
In Cernon, 18% of residents are 65 or over, beside 22% in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
A lower share of one-person households than 99% of compared French towns, at 20%
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
There are 2.6 people in the average household. To put it in context, 35% of households are one person living alone in the typical compared French town. Cernon has fewer single-parent households than half of compared French towns, at 10%.
Only 1.9% of households have no car in Cernon
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
Households in social housing are rarer here than in 99% of compared French towns. The share of households without a car in the typical compared French town is 11%. Across Cernon, 12% of homes stand empty. Here 4.7% of homes are second homes, where the figure in the typical compared French town is 2.1%.
€28,590 a year is the median standard of living here
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.
Half of Cernon’s residents live in households with a standard of living below €28,590 a year per consumption unit, and half above: higher than in 75% of compared French towns.
Cernon sits above 83% of compared French towns for households headed by a manual worker (20%)
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
Nearly a third of households are headed by a retired person in the typical compared French town, against 30% in Cernon. For households headed by a manual worker, the comparison in the typical compared French town is 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 2.8%, a lower share than 83% 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.
The median compared commune in Marne has 4.9%; immigrants here make up a share lower than in 83% of compared French towns. About one in 48: that is how common foreign nationals are in Cernon (2.1%). The share of immigrants 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.
Below 98% of compared French towns: 18% of residents 15 and over are single
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
On the census count, 43% of residents 15 and over are married. For single residents, the comparison in the typical compared French town is 25%.
14% of adults out of school have no 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
Just over a quarter of adults out of school hold a higher-education qualification (typical compared French town: 30%). As a yardstick, nearly a fifth of adults out of school have no qualification in the typical compared French town.
Ranked by age, 2nd youngest 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
No nearby town is as young as Cernon
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cernon | 39.6 | 18% | 4.7% | 2.8% |
| Fagnières 4,858 · 8 mi | 45.7 | 25% | 0.8% | 9.3% |
| Châlons-en-Champagne 42,971 · 8 mi | 41.2 | 21% | 2.5% | 10% |
| Saint-Memmie 5,441 · 8.1 mi | 43.7 | 24% | 0.8% | 7.4% |
| Vitry-le-François 10,996 · 13.6 mi | 45.2 | 25% | 1.9% | 9.8% |
| Blancs-Coteaux 3,080 · 16 mi | 51.4 | 30% | 3.9% | 1.9% |
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 Cernon
What is the population of Cernon?
131 at INSEE’s 2023 census, 2% fewer than in 2012 (133).
How old are Cernon’s residents?
The median age is 39.6, younger than 81% of compared French towns. 28% are under 18 and 18% 65 or older.
How many second homes are there in Cernon?
3, with occasional dwellings: 4.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cernon?
INSEE counts 4 immigrants (born abroad, not French at birth), 2.8% of residents, and 3 foreign nationals (2.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cernon?
€28,590 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.