Postcode area · Bellach · Solothurn
4512 Bellach (Bellach): key figures
4512 Bellach (postcode area in Bellach) has 5,525 residents in 2025 across 5.1 km², or 1,088 people per km². Population: +8.4% between 2015 and 2025.
- 5,525 residents
- 5.1 km²
- 1,088 people/km²
4512 Bellach in numbers
Population
5,525
ranked 407 of 2,275
+8.4%between 2015 and 2025
2015–2025
Population density
1,088people/km²
ranked 342 of 2,275
Area
5.1km²
ranked 2,150 of 3,168
Share of foreign nationals
32.3%
ranked 346 of 2,040
Dwellings
2,789
ranked 417 of 3,164
Residential buildings
1,102
ranked 382 of 3,160
Dwellings in buildings built before 1946
9.8%
ranked 2,889 of 3,164
Key points
Nationally, 4512 Bellach ranks No. 407 of 2,275 postcode areas.
Population of 4512 Bellach over time
Population, 2015–2025
4512 Bellach had 5,095 residents in 2015 and 5,525 in 2025.
| Year | Population |
|---|---|
| 2015 | 5,095 |
| 2020 | 5,177 |
| 2023 | 5,332 |
| 2025 | 5,525 |
All indicators for 4512 Bellach
Next to the value for 4512 Bellach: all postcode areas of Bellach, then of the whole country (totals for counts, weighted averages for rates).
4512 BellachNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4512 Bellach | Bellach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 2,789 | – | – | ranked 417 of 3,164 | ||
| Residential buildings (2026) | 1,102 | – | – | ranked 382 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 9.8% | 9.8% | 23.2% | ranked 2,889 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 16.1% | 16.1% | 23.6% | ranked 2,091 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 73.0% | 73.0% | 63.5% | ranked 1,249 of 3,160 |
Energy
| Indicator | 4512 Bellach | Bellach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 63.1% | 63.1% | 56.2% | ranked 853 of 3,160 | ||
| Heat pumps as main heating (2026) | 20.5% | 20.5% | 16.2% | ranked 865 of 3,160 | ||
| Wood heating systems (2026) | 5.5% | 5.5% | 13.5% | ranked 2,522 of 3,160 | ||
| District heating (2026) | 10.4% | 10.4% | 5.6% | ranked 354 of 3,160 |
Society
| Indicator | 4512 Bellach | Bellach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 32.3% | 32.3% | 29.8% | ranked 346 of 2,040 |
Where is 4512 Bellach?
Frequently asked questions
What is the population of 4512 Bellach (Bellach)?
4512 Bellach has 5,525 residents in 2025. It covers 5.1 km², or 1,088 people per km².
Where is 4512 Bellach?
4512 Bellach (postcode area) is part of Bellach, in Solothurn.
What is the value of “Share of foreign nationals” in 4512 Bellach?
Share of foreign nationals: 32.3% (2025), ranked 346 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4512 Bellach?
Dwellings: 2,789 (2026), ranked 417 of 3,164 postcode areas in the country.