Boniswil: population and statistics
Boniswil has a population of 1,795 (2025) across 2.8 km², or 646 people per km². It ranks 1,036 of 2,115 municipalities by population. Its population is growing: +26.6% between 2015 and 2025.
- 1,795 residents
- 2.8 km²
- 646 people/km²
- 474 m
Key points
Among the 197 municipalities in Aargau, Boniswil ranks No. 115 by population.
Jobs per 1,000 inhabitants: 128.1 in Boniswil, compared with an average of 489.8 in Aargau and 622.5 nationally.
Dwellings in buildings built since 2001: 39.9% in Boniswil, compared with an average of 30.9% in Aargau and 24.6% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,149 kWh a year here.
Boniswil in numbers
Where is Boniswil?
Population of Boniswil over time
Boniswil had 1,418 residents in 2015 and 1,795 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,520 |
| 2021 | 1,589 |
| 2022 | 1,669 |
| 2023 | 1,751 |
| 2024 | 1,770 |
| 2025 | 1,795 |
Did you know?
- “Jobs per 1,000 inhabitants”: lower than in 98% of municipalities.
- “Dwellings in buildings built since 2001”: higher than in 91% of municipalities.
- Its area is roughly equal to 389 football pitches.
- Its population density is 2.8 times the national average.
- The nearest municipality is Leutwil, 1.2 km away.
- The nearest more populous municipality is Seengen (4,516 residents), 2.0 km away.
- A 4 kWp rooftop solar system here would generate about 4,596 kWh a year, roughly what an average household uses.
All indicators for Boniswil
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 | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 20.3% | 19.5% | 20.7% | ranked 972 of 1,811 |
Housing
| Indicator | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 935 | 355,613 | 4,927,050 | ranked 1,087 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 18.4% | 16.6% | 23.3% | ranked 1,160 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 39.9% | 30.9% | 25.3% | ranked 155 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 77.7% | 70.4% | 69.5% | ranked 363 of 1,806 |
Energy
| Indicator | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 62.7% | 66.6% | 53.5% | ranked 606 of 1,806 | |
| Heat pumps as main heating (2026) | 10.8% | 11.6% | 13.7% | ranked 1,156 of 1,806 | |
| Wood heating systems (2026) | 10.0% | 8.3% | 12.4% | ranked 1,070 of 1,806 | |
| District heating (2026) | 0.5% | 6.5% | 1.4% | ranked 1,222 of 1,806 | |
| Photovoltaic installations (2026) | 98 | 26,039 | 329,600 | ranked 1,097 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 982.8 kW | 997.1 kW | 1,134 kW | ranked 1,124 of 1,806 | |
| Rooftop solar electricity potential (2026) | 12.4 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,390 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,930 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,397 of 1,810 |
Economy
| Indicator | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 83 | 47,193 | 728,011 | ranked 1,386 of 2,112 | |
| Entities listed in the commercial register (2026) | 100 | 46,143 | 762,757 | ranked 1,160 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 55.7 | 62.0 | 64.9 | ranked 1,315 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 65.0% | 66.6% | 65.7% | ranked 961 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 33.0% | 29.1% | 29.0% | ranked 560 of 1,808 |
Employment
| Indicator | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 230 | 364,295 | 5,679,518 | ranked 1,551 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 128.1 | 489.8 | 362.9 | ranked 1,770 of 1,810 | |
| Share of jobs in services (2024) | 72.6% | 69.1% | 63.6% | ranked 558 of 1,804 | |
| Share of jobs in industry and construction (2024) | 21.7% | 26.5% | 24.2% | ranked 996 of 1,776 |
Society
| Indicator | Boniswil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 19.1% | 28.1% | 18.9% | ranked 894 of 1,811 |
Sunshine and temperatures: Boniswil
Frequently asked questions
What is the population of Boniswil?
Boniswil has 1,795 residents (2025), ranking 1,036 of 2,115 municipalities.
How big is Boniswil?
Boniswil covers 2.8 km², with a density of 646 people per km².
Is the population of Boniswil growing?
Between 2015 and 2025, the population of Boniswil went from 1,418 to 1,795, a change of +26.6%.
Where is Boniswil?
Boniswil is in Aargau. It belongs to Bezirk Lenzburg (district). Latitude 47.318, longitude 8.186.
Jobs per 1,000 inhabitants: what is the figure for Boniswil?
In Boniswil, “Jobs per 1,000 inhabitants” stands at 128.1 (2024), ranking 1,770 of 1,810 municipalities; the national median is 362.9.
Dwellings in buildings built since 2001: what is the figure for Boniswil?
In Boniswil, “Dwellings in buildings built since 2001” stands at 39.9% (2026), ranking 155 of 1,806 municipalities; the national median is 25.3%.
How much electricity does a solar panel produce in Boniswil?
In Boniswil, a 1 kWp south-facing system tilted at 37° produces about 1,149 kWh a year.
Which municipalities border Boniswil?
The nearest to Boniswil are Leutwil (1.2 km), Hallwil (1.5 km), Seengen (2.0 km), Dürrenäsch (2.2 km), Birrwil (3.2 km).