Postcode area · Erschwil · Solothurn
4228 Erschwil (Erschwil): key figures
4228 Erschwil (postcode area in Erschwil) has 945 residents in 2025 across 7.3 km², or 130 people per km². Population: +10.7% between 2015 and 2025.
- 945 residents
- 7.3 km²
- 130 people/km²
4228 Erschwil in numbers
Population
945
ranked 1,649 of 2,275
+10.7%between 2015 and 2025
2015–2025
Population density
130people/km²
ranked 1,711 of 2,275
Area
7.3km²
ranked 1,595 of 3,168
Share of foreign nationals
17.5%
ranked 1,302 of 2,040
Dwellings
469
ranked 1,969 of 3,164
Residential buildings
368
ranked 1,552 of 3,160
Dwellings in buildings built before 1946
26.0%
ranked 1,699 of 3,164
Key points
Nationally, 4228 Erschwil ranks No. 1,649 of 2,275 postcode areas.
Population of 4228 Erschwil over time
Population, 2015–2025
4228 Erschwil had 854 residents in 2015 and 945 in 2025.
| Year | Population |
|---|---|
| 2015 | 854 |
| 2020 | 899 |
| 2023 | 917 |
| 2025 | 945 |
All indicators for 4228 Erschwil
Next to the value for 4228 Erschwil: all postcode areas of Erschwil, then of the whole country (totals for counts, weighted averages for rates).
4228 ErschwilNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4228 Erschwil | Erschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 469 | – | – | ranked 1,969 of 3,164 | ||
| Residential buildings (2026) | 368 | – | – | ranked 1,552 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 26.0% | 26.0% | 23.2% | ranked 1,699 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 18.3% | 18.3% | 23.6% | ranked 1,891 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 85.9% | 85.9% | 63.5% | ranked 181 of 3,160 |
Energy
| Indicator | 4228 Erschwil | Erschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 62.2% | 62.2% | 56.2% | ranked 901 of 3,160 | ||
| Heat pumps as main heating (2026) | 14.0% | 14.0% | 16.2% | ranked 1,418 of 3,160 | ||
| Wood heating systems (2026) | 19.8% | 19.8% | 13.5% | ranked 1,304 of 3,160 | ||
| District heating (2026) | 0.0% | 0.0% | 5.6% | ranked 2,207 of 3,160 |
Society
| Indicator | 4228 Erschwil | Erschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 17.5% | 17.5% | 29.8% | ranked 1,302 of 2,040 |
Where is 4228 Erschwil?
Frequently asked questions
What is the population of 4228 Erschwil (Erschwil)?
4228 Erschwil has 945 residents in 2025. It covers 7.3 km², or 130 people per km².
Where is 4228 Erschwil?
4228 Erschwil (postcode area) is part of Erschwil, in Solothurn.
What is the value of “Share of foreign nationals” in 4228 Erschwil?
Share of foreign nationals: 17.5% (2025), ranked 1,302 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4228 Erschwil?
Dwellings: 469 (2026), ranked 1,969 of 3,164 postcode areas in the country.