Bünzen: population and statistics
Bünzen has a population of 1,247 (2025) across 5.8 km², or 216 people per km². It ranks 1,297 of 2,115 municipalities by population. Its population is growing: +21.0% between 2015 and 2025.
- 1,247 residents
- 5.8 km²
- 216 people/km²
- 439 m
Key points
Among the 197 municipalities in Aargau, Bünzen ranks No. 151 by population.
Dwellings in buildings built since 2001: 37.2% in Bünzen, compared with an average of 30.9% in Aargau and 24.6% nationally.
Share of limited companies (AG, GmbH) among registered entities: 57.7% in Bünzen, compared with an average of 66.6% in Aargau and 68.6% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,148 kWh a year here.
Bünzen in numbers
Where is Bünzen?
Population of Bünzen over time
Bünzen had 1,031 residents in 2015 and 1,247 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,128 |
| 2021 | 1,152 |
| 2022 | 1,197 |
| 2023 | 1,233 |
| 2024 | 1,245 |
| 2025 | 1,247 |
Did you know?
- Its area is roughly equal to 810 football pitches.
- The nearest more populous municipality is Boswil (3,209 residents), 1.4 km away.
- A 4 kWp rooftop solar system here would generate about 4,592 kWh a year, roughly what an average household uses.
All indicators for Bünzen
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 | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 18.8% | 19.5% | 20.7% | ranked 1,251 of 1,811 |
Housing
| Indicator | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 578 | 355,613 | 4,927,050 | ranked 1,406 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 25.6% | 16.6% | 23.3% | ranked 775 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 37.2% | 30.9% | 25.3% | ranked 248 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 75.6% | 70.4% | 69.5% | ranked 496 of 1,806 |
Energy
| Indicator | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 62.1% | 66.6% | 53.5% | ranked 620 of 1,806 | |
| Heat pumps as main heating (2026) | 15.3% | 11.6% | 13.7% | ranked 809 of 1,806 | |
| Wood heating systems (2026) | 19.4% | 8.3% | 12.4% | ranked 571 of 1,806 | |
| District heating (2026) | 0.4% | 6.5% | 1.4% | ranked 1,310 of 1,806 | |
| Photovoltaic installations (2026) | 76 | 26,039 | 329,600 | ranked 1,292 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,127 kW | 997.1 kW | 1,134 kW | ranked 913 of 1,806 | |
| Rooftop solar electricity potential (2026) | 15.4 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,220 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 12,390 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 478 of 1,810 |
Economy
| Indicator | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 100 | 47,193 | 728,011 | ranked 1,256 of 2,112 | |
| Entities listed in the commercial register (2026) | 71 | 46,143 | 762,757 | ranked 1,380 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 56.9 | 62.0 | 64.9 | ranked 1,267 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 57.7% | 66.6% | 65.7% | ranked 1,511 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 36.6% | 29.1% | 29.0% | ranked 306 of 1,808 |
Employment
| Indicator | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 268 | 364,295 | 5,679,518 | ranked 1,476 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 214.9 | 489.8 | 362.9 | ranked 1,509 of 1,810 | |
| Share of jobs in services (2024) | 54.9% | 69.1% | 63.6% | ranked 1,201 of 1,804 | |
| Share of jobs in industry and construction (2024) | 17.2% | 26.5% | 24.2% | ranked 1,246 of 1,776 |
Society
| Indicator | Bünzen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 20.4% | 28.1% | 18.9% | ranked 785 of 1,811 |
Sunshine and temperatures: Bünzen
Frequently asked questions
What is the population of Bünzen?
Bünzen has 1,247 residents (2025), ranking 1,297 of 2,115 municipalities.
How big is Bünzen?
Bünzen covers 5.8 km², with a density of 216 people per km².
Is the population of Bünzen growing?
Between 2015 and 2025, the population of Bünzen went from 1,031 to 1,247, a change of +21.0%.
Where is Bünzen?
Bünzen is in Aargau. It belongs to Bezirk Muri (district). Latitude 47.311, longitude 8.326.
Dwellings in buildings built since 2001: what is the figure for Bünzen?
In Bünzen, “Dwellings in buildings built since 2001” stands at 37.2% (2026), ranking 248 of 1,806 municipalities; the national median is 25.3%.
Share of limited companies (AG, GmbH) among registered entities: what is the figure for Bünzen?
In Bünzen, “Share of limited companies (AG, GmbH) among registered entities” stands at 57.7% (2026), ranking 1,511 of 1,808 municipalities; the national median is 65.7%.
How much electricity does a solar panel produce in Bünzen?
In Bünzen, a 1 kWp south-facing system tilted at 37° produces about 1,148 kWh a year.
Which municipalities border Bünzen?
The nearest to Bünzen are Boswil (1.4 km), Besenbüren (1.6 km), Kallern (2.4 km), Rottenschwil (2.7 km), Waltenschwil (3.2 km).