Strengelbach: population and statistics
Strengelbach has a population of 5,080 (2025) across 6.0 km², or 842 people per km². It ranks 429 of 2,115 municipalities by population. Its population is growing: +10.5% between 2015 and 2025.
- 5,080 residents
- 6.0 km²
- 842 people/km²
- 429 m
Key points
Among the 197 municipalities in Aargau, Strengelbach ranks No. 39 by population.
Entities in the commercial register per 1,000 inhabitants: 38.6 in Strengelbach, compared with an average of 62.0 in Aargau and 83.6 nationally.
Oil or gas heating systems: 77.6% in Strengelbach, compared with an average of 66.6% in Aargau and 61.7% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,162 kWh a year here.
Strengelbach in numbers
Where is Strengelbach?
Population of Strengelbach over time
Strengelbach had 4,597 residents in 2015 and 5,080 in 2025.
| Year | Population |
|---|---|
| 2020 | 4,859 |
| 2021 | 4,911 |
| 2022 | 4,948 |
| 2023 | 5,104 |
| 2024 | 5,098 |
| 2025 | 5,080 |
Did you know?
- “Entities in the commercial register per 1,000 inhabitants”: lower than in 98% of municipalities.
- “Oil or gas heating systems”: higher than in 92% of municipalities.
- Its area is roughly equal to 845 football pitches.
- Its population density is 3.6 times the national average.
- The nearest more populous municipality is Zofingen (13,054 residents), 1.6 km away.
- A 4 kWp rooftop solar system here would generate about 4,648 kWh a year, roughly what an average household uses.
All indicators for Strengelbach
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 | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 21.6% | 19.5% | 20.7% | ranked 748 of 1,811 |
Housing
| Indicator | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,471 | 355,613 | 4,927,050 | ranked 479 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 18.3% | 16.6% | 23.3% | ranked 1,165 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 23.7% | 30.9% | 25.3% | ranked 997 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 70.7% | 70.4% | 69.5% | ranked 829 of 1,806 |
Energy
| Indicator | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 77.6% | 66.6% | 53.5% | ranked 150 of 1,806 | |
| Heat pumps as main heating (2026) | 9.0% | 11.6% | 13.7% | ranked 1,318 of 1,806 | |
| Wood heating systems (2026) | 5.8% | 8.3% | 12.4% | ranked 1,369 of 1,806 | |
| District heating (2026) | 0.7% | 6.5% | 1.4% | ranked 1,134 of 1,806 | |
| Photovoltaic installations (2026) | 185 | 26,039 | 329,600 | ranked 576 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 935.8 kW | 997.1 kW | 1,134 kW | ranked 1,198 of 1,806 | |
| Rooftop solar electricity potential (2026) | 32.9 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 611 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,467 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,467 of 1,810 |
Economy
| Indicator | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 200 | 47,193 | 728,011 | ranked 764 of 2,112 | |
| Entities listed in the commercial register (2026) | 196 | 46,143 | 762,757 | ranked 746 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 38.6 | 62.0 | 64.9 | ranked 1,765 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 60.2% | 66.6% | 65.7% | ranked 1,362 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 37.2% | 29.1% | 29.0% | ranked 273 of 1,808 |
Employment
| Indicator | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 1,493 | 364,295 | 5,679,518 | ranked 621 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 293.9 | 489.8 | 362.9 | ranked 1,191 of 1,810 | |
| Share of jobs in services (2024) | 74.6% | 69.1% | 63.6% | ranked 493 of 1,804 | |
| Share of jobs in industry and construction (2024) | 22.8% | 26.5% | 24.2% | ranked 945 of 1,776 |
Society
| Indicator | Strengelbach | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 30.4% | 28.1% | 18.9% | ranked 285 of 1,811 |
Sunshine and temperatures: Strengelbach
Frequently asked questions
What is the population of Strengelbach?
Strengelbach has 5,080 residents (2025), ranking 429 of 2,115 municipalities.
How big is Strengelbach?
Strengelbach covers 6.0 km², with a density of 842 people per km².
Is the population of Strengelbach growing?
Between 2015 and 2025, the population of Strengelbach went from 4,597 to 5,080, a change of +10.5%.
Where is Strengelbach?
Strengelbach is in Aargau. It belongs to Bezirk Zofingen (district). Latitude 47.282, longitude 7.929.
Entities in the commercial register per 1,000 inhabitants: what is the figure for Strengelbach?
In Strengelbach, “Entities in the commercial register per 1,000 inhabitants” stands at 38.6 (2026), ranking 1,765 of 1,811 municipalities; the national median is 64.9.
Oil or gas heating systems: what is the figure for Strengelbach?
In Strengelbach, “Oil or gas heating systems” stands at 77.6% (2026), ranking 150 of 1,806 municipalities; the national median is 53.5%.
How much electricity does a solar panel produce in Strengelbach?
In Strengelbach, a 1 kWp south-facing system tilted at 37° produces about 1,162 kWh a year.
Which municipalities border Strengelbach?
The nearest to Strengelbach are Zofingen (1.6 km), Vordemwald (2.3 km), Brittnau (2.7 km), Wikon (3.5 km), Oftringen (3.7 km).