Younger than 94% of compared French towns: half of Sy is under 36
In Sy, 25% of households are one person living alone, beside 35% in the typical compared French town. About one in 27: that is how common flats are in Sy (3.7%). Households headed by a manual worker are rarer here than in 99% of compared French towns. This Ardennes town had 58 residents in 23 households at the 2023 census.
Throughout this page, the Ardennes 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 Sy
A young town
Half of Sy’s residents are under 36 and half over; the median of compared French towns is 44. 21% are under 15 and 9.6% are 65 or older. Ages ↓
Growing fast
Sy had 48 residents at the 2012 census and 58 in 2023, up 21%: faster growth than in 91% of compared French towns. Population ↓
Empty homes
The census found 4 homes empty (13%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +21% change since 2012: faster than 91% 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
In two steps, +6% to 2017 and +14% after, the town’s change compares with +5% for the median compared French town and −9% in Ardennes.
Residents aged 65 and over: 9.6%, a lower share than 99% 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
■ Sy 36. The median compared French town: 44.
Here 12% of residents are 15 to 24, where the figure in the typical compared French town is 11%. Set beside that, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
44% women, 56% men
About 79 women for every 100 men. Median share of women: Ardennes 52.2%, France 51.8%.
Sy ranks above 99% of compared French towns on single-parent households: 25%
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 Ardennes median and the France median
Living alone · share
A household here holds 2.5 people on average. Across the comparison, one in ten households are single parents in the typical compared French town.
Above 88% of compared French towns: 9.9% of homes are second homes
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. Measured more widely, 2.1% of homes are second homes in the typical compared French town. Census figures put empty homes at 13% in Sy. One household in 10 has no car, against 11% in the median compared French town.
Fewer households headed by a retired person than 83% of compared French towns: 25%
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. In the typical compared French town, households headed by a retired person come to 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
0% of Sy’s residents are immigrants
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 are rarer here than in 99% 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.
22% of residents 15 and over are single, below 79% 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
On the census count, 44% of residents 15 and over are married. In the typical compared French town, the share of single residents is 25%.
Sy sits above 61% of compared French towns for graduates of higher education (33%)
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 share of adults with no qualification tops 58% of compared French towns: 21%. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The youngest of 41 French towns of 58 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.
The youngest is Sy (36), the oldest Prayssac (62.3).
Sy is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Sy | 36 | 9.6% | 9.9% | 0% |
| Vouziers 3,825 · 10.9 mi | 55.5 | 35% | 2.3% | 1.8% |
| Sedan 16,667 · 13.1 mi | 45 | 24% | 1.3% | 8% |
| Vivier-au-Court 2,732 · 15.4 mi | 42.4 | 20% | 0.4% | 11% |
| Vrigne aux Bois 3,518 · 15.5 mi | 44.9 | 22% | 1.2% | 4.3% |
| Carignan 2,680 · 15.6 mi | 48.7 | 26% | 1.8% | 7.2% |
| Villers-Semeuse 3,615 · 16.8 mi | 49.6 | 27% | 0.5% | 5.8% |
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 Sy
What is the population of Sy?
58 at INSEE’s 2023 census, 21% more than in 2012 (48).
How old are Sy’s residents?
The median age is 36, younger than 94% of compared French towns. 27% are under 18 and 9.6% 65 or older.
How many second homes are there in Sy?
3, with occasional dwellings: 9.9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sy?
INSEE counts 0 immigrants (born abroad, not French at birth), 0% of residents, and 0 foreign nationals (0%). The medians of compared French towns are 6.5% and 4.3%.
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.