Erschwil: population and statistics
Erschwil has a population of 996 (2025) across 7.4 km², or 134 people per km². It ranks 1,461 of 2,115 municipalities by population. Its population is growing: +10.3% between 2015 and 2025.
- 996 residents
- 7.4 km²
- 134 people/km²
- 459 m
Key points
Among the 106 municipalities in Solothurn, Erschwil ranks No. 76 by population.
District heating: 0.0% in Erschwil, compared with an average of 2.7% in Solothurn and 7.3% nationally.
Share of jobs in industry and construction: 69.0% in Erschwil, compared with an average of 27.9% in Solothurn and 22.0% nationally.
A 1 kWp solar panel tilted at 35° generates about 1,064 kWh a year here.
Erschwil in numbers
Where is Erschwil?
Population of Erschwil over time
Erschwil had 903 residents in 2015 and 996 in 2025.
| Year | Population |
|---|---|
| 2020 | 948 |
| 2021 | 939 |
| 2022 | 943 |
| 2023 | 960 |
| 2024 | 967 |
| 2025 | 996 |
Did you know?
- Number 1 in Solothurn for “Share of jobs in industry and construction”.
- “District heating”: lower than in 99% of municipalities.
- “Share of jobs in industry and construction”: higher than in 99% of municipalities.
- “Share of single-family houses among residential buildings”: higher than in 98% of municipalities.
- Its area is roughly equal to 1,041 football pitches.
- The nearest more populous municipality is Büsserach (2,473 residents), 2.0 km away.
- A 4 kWp rooftop solar system here would generate about 4,256 kWh a year, roughly what an average household uses.
All indicators for Erschwil
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 | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 25.2% | 21.7% | 20.7% | ranked 263 of 1,811 |
Housing
| Indicator | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 470 | 148,900 | 4,927,050 | ranked 1,558 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 26.0% | 22.0% | 23.3% | ranked 752 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 18.3% | 21.9% | 25.3% | ranked 1,353 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 85.9% | 70.1% | 69.5% | ranked 42 of 1,806 |
Energy
| Indicator | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 62.0% | 72.7% | 53.5% | ranked 624 of 1,806 | |
| Heat pumps as main heating (2026) | 14.0% | 11.4% | 13.7% | ranked 887 of 1,806 | |
| Wood heating systems (2026) | 20.1% | 8.1% | 12.4% | ranked 543 of 1,806 | |
| District heating (2026) | 0.0% | 2.7% | 1.4% | ranked 1,506 of 1,806 | |
| Photovoltaic installations (2026) | 49 | 11,211 | 329,600 | ranked 1,574 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 939.6 kW | 1,095 kW | 1,134 kW | ranked 1,192 of 1,806 | |
| Rooftop solar electricity potential (2026) | 6.7 GWh/year | 2,373 GWh/year | 64,783 GWh/year | ranked 1,785 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,737 kWh/inh. | 8,138 kWh/inh. | 9,356 kWh/inh. | ranked 1,429 of 1,810 |
Economy
| Indicator | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 65 | 18,596 | 728,011 | ranked 1,560 of 2,112 | |
| Entities listed in the commercial register (2026) | 58 | 18,362 | 762,757 | ranked 1,501 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 58.2 | 63.0 | 64.9 | ranked 1,200 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 62.1% | 65.9% | 65.7% | ranked 1,224 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 32.8% | 29.3% | 29.0% | ranked 579 of 1,808 |
Employment
| Indicator | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 407 | 151,633 | 5,679,518 | ranked 1,277 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 408.6 | 520.0 | 362.9 | ranked 741 of 1,810 | |
| Share of jobs in services (2024) | 24.8% | 67.4% | 63.6% | ranked 1,775 of 1,804 | |
| Share of jobs in industry and construction (2024) | 69.0% | 27.9% | 24.2% | ranked 17 of 1,776 |
Society
| Indicator | Erschwil | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 17.8% | 25.9% | 18.9% | ranked 1,000 of 1,811 |
Sunshine and temperatures: Erschwil
Frequently asked questions
What is the population of Erschwil?
Erschwil has 996 residents (2025), ranking 1,461 of 2,115 municipalities.
How big is Erschwil?
Erschwil covers 7.4 km², with a density of 134 people per km².
Is the population of Erschwil growing?
Between 2015 and 2025, the population of Erschwil went from 903 to 996, a change of +10.3%.
Where is Erschwil?
Erschwil is in Solothurn. It belongs to Bezirk Thierstein (district). Latitude 47.373, longitude 7.543.
District heating: what is the figure for Erschwil?
In Erschwil, “District heating” stands at 0.0% (2026), ranking 1,506 of 1,806 municipalities; the national median is 1.4%.
Share of jobs in industry and construction: what is the figure for Erschwil?
In Erschwil, “Share of jobs in industry and construction” stands at 69.0% (2024), ranking 17 of 1,776 municipalities; the national median is 24.2%.
How much electricity does a solar panel produce in Erschwil?
In Erschwil, a 1 kWp south-facing system tilted at 35° produces about 1,064 kWh a year.
Which municipalities border Erschwil?
The nearest to Erschwil are Büsserach (2.0 km), Grindel (3.1 km), Beinwil (SO) (3.5 km), Fehren (3.8 km), Wahlen (3.8 km).