Dizy is older than 91% of compared French towns: a median age of 53.2
One in ten households are single parents in the typical compared French town, against 4.7% in Dizy. The share of households headed by a retired person stands at 42%. Households without a car are rarer here than in 81% of compared French towns. There were 740 households locally at the 2023 Census, home to 1,482 residents.
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 Dizy
An older town
Half of Dizy’s residents are under 53.2 and half over; the median of compared French towns is 44. 26% are 65 or older (France median 22%), 6.1% 80 or older. Ages ↓
Fewer residents than in 2012
Dizy had 1,561 residents at the 2012 census and 1,482 in 2023, down 5%: slower growth than in 88% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Dizy changed by −5% from 2012 to 2023, slower than 88% 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
The median Marne town changed −2% and the median compared French town +5%; here the first five years brought −2% and the next six −3%.
In Dizy, 8% of residents are 15 to 24, fewer than in 92% 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
■ Dizy 53.2. The median compared French town: 44.
26% of residents are 65 or over, against 22% in the typical compared French town. Elsewhere, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 89 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
A lower share of couples with children than 68% of compared French towns, at 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.
Against the Marne median and the France median
Living alone · share
Average household size: 2 people. As a yardstick, a quarter of households are couples with children in the typical compared French town. Compared with other places, one-person households are common here: 36%, more than in 53% of compared French towns.
Dizy ranks above 77% of compared French towns on empty homes: 9.7%
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
With flats at 23%, Dizy is behind 62% of compared French towns on that count. The comparison figure for empty homes is 6.7% in the typical compared French town. 28% of households have been in place 30 years or more; 5.2% moved in within the last two years. At 13%, the share of households in social housing is higher than in 55% of compared French towns.
Median standard of living: €29,940 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 €29,940 a year per consumption unit, the median standard of living here is higher than in 84% of compared French towns.
Above 68% of compared French towns: 17% of households are headed by a manual worker
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
Compared with 9.4% in the typical compared French town, nearly one in ten households are headed by a manager or professional here. As a yardstick, 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).
3.5% of residents are immigrants, fewer than in 77% 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 figure for foreign nationals is 2% in Dizy and 4.3% in the typical compared French town. Against that, 6.5% of residents are immigrants in the typical compared French town.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
17% of residents 15 and over are single, below 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
Here 46% of residents 15 and over are married, where the figure in the typical compared French town is 43%. For single residents, the comparison in the typical compared French town is 25%.
Dizy ranks below 76% of compared French towns on graduates of higher education: 23%
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 Dizy, just over a fifth of adults out of school have no qualification, beside 19% in the typical compared French town. Graduates of higher education make up 30% in the typical compared French town.
The 7th oldest of 41 French towns of 1,482 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Every neighbor is younger than Dizy
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Dizy | 53.2 | 26% | 2.2% | 3.5% |
| Épernay 22,174 · 2 mi | 44 | 23% | 5.2% | 11% |
| Aÿ-Champagne 5,103 · 2.6 mi | 51.9 | 30% | 3.2% | 2.5% |
| Bezannes 5,039 · 10.9 mi | 31.7 | 15% | 2.6% | 7% |
| Blancs-Coteaux 3,080 · 11 mi | 51.4 | 30% | 3.9% | 1.9% |
| Cormontreuil 6,534 · 11.2 mi | 50.9 | 31% | 0.8% | 4.9% |
| Tinqueux 10,771 · 12.6 mi | 44.4 | 24% | 0.8% | 6.1% |
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 Dizy
What is the population of Dizy?
1,482 at INSEE’s 2023 census, 5% fewer than in 2012 (1,561).
How old are Dizy’s residents?
The median age is 53.2, older than 91% of compared French towns. 16% are under 18 and 26% 65 or older.
How many second homes are there in Dizy?
18, with occasional dwellings: 2.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Dizy?
INSEE counts 53 immigrants (born abroad, not French at birth), 3.5% of residents, and 30 foreign nationals (2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Dizy?
€29,940 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.