Silly: population and statistics
Silly has a population of 8,431 (2026) across 68.6 km², or 123 people per km². It ranks 399 of 565 municipalities by population. Its population is growing: +0.9% between 2016 and 2026.
- 8,431 residents
- 68.6 km²
- 123 people/km²
- 60 m
Key points
Among the 69 municipalities in Hainaut, Silly ranks No. 47 by population.
Cars per household: 1.44 in Silly, compared with an average of 1.08 in Hainaut and 1.07 nationally.
Largest business sector: Professional, scientific and technical, with 17.5% of the area's businesses.
A 1 kWp solar panel tilted at 39° generates about 1,089 kWh a year here.
Did you know?
- Number 1 in Hainaut for “Median selling price of houses”.
- Number 1 in Hainaut for “Cars per household”.
- “Cars per household”: higher than in 93% of municipalities.
- Its area is roughly equal to 9,604 football pitches.
- Its population density is 3.1 times lower than the national average.
- The nearest municipality is Brugelette, 7.3 km away.
- The nearest more populous municipality is Lessines (18,901 residents), 9.2 km away.
Silly in numbers
All indicators for Silly
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants aged 65 and over (2026) | 22.7% | 20.4% | 21.7% | ranked 191 of 564 | |
| Share of inhabitants under 20 (2026) | 20.7% | 22.3% | 21.5% | ranked 393 of 564 |
Housing
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings built before 1946 (2024) | 44.2% | – | 34.6% | ranked 171 of 564 | |
| Buildings built after 2001 (2024) | 12.4% | – | 15.3% | ranked 391 of 564 | |
| Share of houses in the building stock (2024) | 83.4% | – | 79.9% | ranked 101 of 564 | |
| Number of dwellings (2024) | 3,595 | 659,990 | 5,783,434 | ranked 419 of 565 | |
| New dwellings authorised per year per 1,000 inhabitants (2021-2025) | 5.65 ‰ inh. | 2.06 ‰ inh. | 4.39 ‰ inh. | ranked 165 of 564 |
Energy
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| Residential buildings with central heating or air conditioning (2024) | 79.6% | – | 76.7% | ranked 222 of 564 |
Economy
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| VAT-liable enterprises (2024) | 872 | 90,576 | 1,170,010 | ranked 392 of 565 | |
| VAT-liable enterprises per 1,000 inhabitants (2024) | 103.4 ‰ inh. | 66.2 ‰ inh. | 102.2 ‰ inh. | ranked 275 of 564 | |
| Net taxable income per inhabitant (2023) | 26,645 € | 20,382 € | 24,247 € | ranked 122 of 564 | |
| Median disposable income (administrative) (2023) | 32,347 € | – | 30,830 € | ranked 127 of 551 | |
| Median selling price of houses (2025) | 347,500 € | – | 302,500 € | ranked 172 of 554 |
Transport
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| Cars per household (2025) | 1.44 | 1.08 | 1.25 | ranked 34 of 564 | |
| Households without a car (2025) | 12.9% | 26.4% | 17.6% | ranked 522 of 564 |
Society
| Indicator | Silly | Hainaut | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants of foreign nationality (2026) | 5.2% | 12.7% | 6.4% | ranked 353 of 564 | |
| Administrative poverty risk (2023) | 5.9% | 14.8% | 7.0% | ranked 367 of 551 |
Population of Silly over time
Silly had 8,353 residents in 2016 and 8,431 in 2026.
| Year | Population |
|---|---|
| 2021 | 8,377 |
| 2022 | 8,415 |
| 2023 | 8,420 |
| 2024 | 8,475 |
| 2025 | 8,422 |
| 2026 | 8,431 |
Where is Silly?
Business sectors: Silly
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Professional, scientific and technical17.5% ×0.9
- Agriculture, forestry and fishing15.4% ×3.7
- Wholesale and retail trade13.3% ×0.9
- Construction9.9% ×0.7
- Administrative and support services7.6% ×1.2
- Other service activities6.1% ×0.9
- Information and communication5.8% ×1.1
- Health and social work4.4% ×0.9
Sunshine and temperatures: Silly
Frequently asked questions
What is the population of Silly?
Silly has 8,431 residents (2026), ranking 399 of 565 municipalities.
How big is Silly?
Silly covers 68.6 km², with a density of 123 people per km².
Is the population of Silly growing?
Between 2016 and 2026, the population of Silly went from 8,353 to 8,431, a change of +0.9%.
Where is Silly?
Silly is in Hainaut. It belongs to Ath (arrondissement). Latitude 50.650, longitude 3.917.
Cars per household: what is the figure for Silly?
In Silly, “Cars per household” stands at 1.44 (2025), ranking 34 of 564 municipalities; the national median is 1.25.
Share of houses in the building stock: what is the figure for Silly?
In Silly, “Share of houses in the building stock” stands at 83.4% (2024), ranking 101 of 564 municipalities; the national median is 79.9%.
How much electricity does a solar panel produce in Silly?
In Silly, a 1 kWp south-facing system tilted at 39° produces about 1,089 kWh a year.
Which municipalities border Silly?
The nearest to Silly are Brugelette (7.3 km), Bever (7.5 km), Lessines (9.2 km), Ath (10 km), Enghien (10 km).
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