Olsberg: population and statistics
Olsberg has a population of 366 (2025) across 4.7 km², or 78.2 people per km². It ranks 1,919 of 2,115 municipalities by population. Its population is growing: +2.8% between 2015 and 2025.
- 366 residents
- 4.7 km²
- 78 people/km²
- 395 m
Key points
Among the 197 municipalities in Aargau, Olsberg ranks No. 193 by population.
A 1 kWp solar panel tilted at 38° generates about 1,162 kWh a year here.
Olsberg in numbers
Where is Olsberg?
Population of Olsberg over time
Olsberg had 356 residents in 2015 and 366 in 2025.
| Year | Population |
|---|---|
| 2020 | 356 |
| 2021 | 353 |
| 2022 | 361 |
| 2023 | 367 |
| 2024 | 360 |
| 2025 | 366 |
Did you know?
- Number 1 in Aargau for “Share of single-family houses among residential buildings”.
- “Rooftop solar electricity potential”: lower than in 93% of municipalities.
- “Entities listed in the commercial register”: lower than in 93% of municipalities.
- “Dwellings”: lower than in 92% of municipalities.
- Its area is roughly equal to 655 football pitches.
- Its population density is 3.0 times lower than the national average.
- The nearest more populous municipality is Arisdorf (1,703 residents), 1.9 km away.
All indicators for Olsberg
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 | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 29.5% | 19.5% | 20.7% |
Housing
| Indicator | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 192 | 355,613 | 4,927,050 | ranked 1,944 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 26.0% | 16.6% | 23.3% | ||
| Dwellings in buildings built since 2001 (2026) | 22.4% | 30.9% | 25.3% | ||
| Share of single-family houses among residential buildings (2026) | 86.4% | 70.4% | 69.5% |
Energy
| Indicator | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 46.2% | 66.6% | 53.5% | ||
| Heat pumps as main heating (2026) | 16.0% | 11.6% | 13.7% | ||
| Wood heating systems (2026) | 25.5% | 8.3% | 12.4% | ||
| District heating (2026) | 0.0% | 6.5% | 1.4% | ||
| Photovoltaic installations (2026) | 23 | 26,039 | 329,600 | ranked 1,908 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,047 kW | 997.1 kW | 1,134 kW | ||
| Rooftop solar electricity potential (2026) | 4.6 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,956 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 12,459 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. |
Economy
| Indicator | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 29 | 47,193 | 728,011 | ranked 1,924 of 2,112 | |
| Entities listed in the commercial register (2026) | 17 | 46,143 | 762,757 | ranked 1,965 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 46.4 | 62.0 | 64.9 | ||
| Share of limited companies (AG, GmbH) among registered entities (2026) | 58.8% | 66.6% | 65.7% | ||
| Share of sole proprietorships among registered entities (2026) | 29.4% | 29.1% | 29.0% |
Employment
| Indicator | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 108 | 364,295 | 5,679,518 | ranked 1,851 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 295.1 | 489.8 | 362.9 | ||
| Share of jobs in services (2024) | 75.0% | 69.1% | 63.6% |
Society
| Indicator | Olsberg | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 18.9% | 28.1% | 18.9% |
Sunshine and temperatures: Olsberg
Frequently asked questions
What is the population of Olsberg?
Olsberg has 366 residents (2025), ranking 1,919 of 2,115 municipalities.
How big is Olsberg?
Olsberg covers 4.7 km², with a density of 78 people per km².
Is the population of Olsberg growing?
Between 2015 and 2025, the population of Olsberg went from 356 to 366, a change of +2.8%.
Where is Olsberg?
Olsberg is in Aargau. It belongs to Bezirk Rheinfelden (district). Latitude 47.523, longitude 7.785.
Rooftop solar electricity potential: what is the figure for Olsberg?
In Olsberg, “Rooftop solar electricity potential” stands at 4.6 GWh/year (2026), ranking 1,956 of 2,114 municipalities; the national median is 19.0 GWh/year.
Entities listed in the commercial register: what is the figure for Olsberg?
In Olsberg, “Entities listed in the commercial register” stands at 17 (2026), ranking 1,965 of 2,115 municipalities; the national median is 118.
How much electricity does a solar panel produce in Olsberg?
In Olsberg, a 1 kWp south-facing system tilted at 38° produces about 1,162 kWh a year.
Which municipalities border Olsberg?
The nearest to Olsberg are Arisdorf (1.9 km), Magden (2.4 km), Giebenach (3.0 km), Hersberg (3.5 km), Rheinfelden (3.5 km).