A median age of 48.3: Sillery is older than 76% of compared French towns
Flats: 18% here and 30% in the typical compared French town. There were 810 households in Sillery at the 2023 Census, home to 1,824 residents. In Sillery, 37% of households are headed by a retired person. Compared with other places, one-person households are scarce here: 32%, fewer than in 68% 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.
From 2012 to 2023, Sillery outgrew 69% of compared French towns: +10%
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
In two steps, +4% to 2017 and +6% after, the town’s change compares with +5% for the median compared French town and −2% in Marne.
Only 10% of residents are 15 to 24 in Sillery
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Sillery 48.3. The median compared French town: 44.
Against a figure of 22% in the typical compared French town, the share of residents aged 65 and over in Sillery comes in at 23%. Set beside that, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
Above 68% of compared French towns: 29% of households are couples with children
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
Households average 2.2 people. Sillery has more single-parent households than 59% of compared French towns, at 11%. As a yardstick, a quarter of households are couples with children in the typical compared French town.
Households without a car make up 7.3% in Sillery, less than in 71% 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
Of all households, 11% moved in during the last two years and 27% have stayed three decades or more. Fewer second homes than in nearly four fifths of compared French towns: 1%. Meanwhile, the share of households in social housing is 18%, against 12% in the typical compared French town.
Standard of living at the median: €30,670 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.
The median standard of living in Sillery is €30,670 a year per consumption unit: higher than in 87% of compared French towns.
A larger share of households headed by a manager or professional than 74% of compared French towns: 14%
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
For Sillery, the census puts households headed by a manual worker at 13%. Across the comparison, 9.4% of households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Fewer immigrants than 60% of compared French towns: 5.4%
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.
The median compared commune in Marne has 4.9%; immigrants here make up a share lower than in three fifths of compared French towns. The census found that 3.7% of residents are foreign nationals in Sillery. By way of comparison, 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.
In Sillery, 49% of residents 15 and over are married, more than in 89% 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
In the typical compared French town, a quarter of residents 15 and over are single; in Sillery, 21%. The comparison figure for married residents is 43% in the typical compared French town.
Sillery: 36% of adults out of school hold a higher-education qualification, above 71% 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
About one in six: that is how common adults with no qualification are in Sillery (18%). Typically, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
41 French towns of 1,824 to 2,582 people: this is the 15th 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).
1 in 6 nearby towns have a higher median age than Sillery
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Sillery | 48.3 | 23% | 1% | 5.4% |
| Cormontreuil 6,534 · 4.2 mi | 50.9 | 31% | 0.8% | 4.9% |
| Reims 177,674 · 6 mi | 35.1 | 17% | 3.8% | 14% |
| Bezannes 5,039 · 6.5 mi | 31.7 | 15% | 2.6% | 7% |
| Witry-lès-Reims 4,950 · 6.5 mi | 44 | 20% | 0.6% | 3.6% |
| Bétheny 6,975 · 7 mi | 47.6 | 27% | 0.8% | 4.2% |
| Tinqueux 10,771 · 7.3 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 Sillery
What is the population of Sillery?
1,824 at INSEE’s 2023 census, 10% more than in 2012 (1,661).
How old are Sillery’s residents?
The median age is 48.3, older than 76% of compared French towns. 20% are under 18 and 23% 65 or older.
How many second homes are there in Sillery?
9, with occasional dwellings: 1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sillery?
INSEE counts 98 immigrants (born abroad, not French at birth), 5.4% of residents, and 68 foreign nationals (3.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Sillery?
€30,670 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.