Sarmenstorf: population and statistics
Sarmenstorf has a population of 3,194 (2025) across 8.3 km², or 385 people per km². It ranks 689 of 2,115 municipalities by population. Its population is growing: +13.9% between 2015 and 2025.
- 3,194 residents
- 8.3 km²
- 385 people/km²
- 537 m
Key points
Among the 197 municipalities in Aargau, Sarmenstorf ranks No. 78 by population.
Dwellings in buildings built since 2001: 37.5% in Sarmenstorf, compared with an average of 30.9% in Aargau and 24.6% nationally.
Jobs per 1,000 inhabitants: 241.7 in Sarmenstorf, compared with an average of 489.8 in Aargau and 622.5 nationally.
A 1 kWp solar panel tilted at 37° generates about 1,150 kWh a year here.
Sarmenstorf in numbers
Where is Sarmenstorf?
Population of Sarmenstorf over time
Sarmenstorf had 2,805 residents in 2015 and 3,194 in 2025.
| Year | Population |
|---|---|
| 2020 | 2,913 |
| 2021 | 2,976 |
| 2022 | 3,066 |
| 2023 | 3,118 |
| 2024 | 3,182 |
| 2025 | 3,194 |
Did you know?
- Its area is roughly equal to 1,162 football pitches.
- The nearest municipality is Fahrwangen, 1.9 km away.
- The nearest more populous municipality is Villmergen (8,290 residents), 4.0 km away.
- A 4 kWp rooftop solar system here would generate about 4,600 kWh a year, roughly what an average household uses.
All indicators for Sarmenstorf
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 | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 18.1% | 19.5% | 20.7% | ranked 1,379 of 1,811 |
Housing
| Indicator | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 1,476 | 355,613 | 4,927,050 | ranked 789 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 21.8% | 16.6% | 23.3% | ranked 979 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 37.5% | 30.9% | 25.3% | ranked 239 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 75.3% | 70.4% | 69.5% | ranked 512 of 1,806 |
Energy
| Indicator | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 66.1% | 66.6% | 53.5% | ranked 475 of 1,806 | |
| Heat pumps as main heating (2026) | 13.5% | 11.6% | 13.7% | ranked 916 of 1,806 | |
| Wood heating systems (2026) | 14.3% | 8.3% | 12.4% | ranked 804 of 1,806 | |
| District heating (2026) | 0.6% | 6.5% | 1.4% | ranked 1,187 of 1,806 | |
| Photovoltaic installations (2026) | 168 | 26,039 | 329,600 | ranked 648 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,425 kW | 997.1 kW | 1,134 kW | ranked 613 of 1,806 | |
| Rooftop solar electricity potential (2026) | 26.9 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 769 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 8,425 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,093 of 1,810 |
Economy
| Indicator | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 193 | 47,193 | 728,011 | ranked 786 of 2,112 | |
| Entities listed in the commercial register (2026) | 201 | 46,143 | 762,757 | ranked 731 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 62.9 | 62.0 | 64.9 | ranked 982 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 65.7% | 66.6% | 65.7% | ranked 904 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 30.8% | 29.1% | 29.0% | ranked 738 of 1,808 |
Employment
| Indicator | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 772 | 364,295 | 5,679,518 | ranked 954 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 241.7 | 489.8 | 362.9 | ranked 1,401 of 1,810 | |
| Share of jobs in services (2024) | 65.3% | 69.1% | 63.6% | ranked 831 of 1,804 | |
| Share of jobs in industry and construction (2024) | 26.8% | 26.5% | 24.2% | ranked 771 of 1,776 |
Society
| Indicator | Sarmenstorf | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 16.8% | 28.1% | 18.9% | ranked 1,079 of 1,811 |
Sunshine and temperatures: Sarmenstorf
Frequently asked questions
What is the population of Sarmenstorf?
Sarmenstorf has 3,194 residents (2025), ranking 689 of 2,115 municipalities.
How big is Sarmenstorf?
Sarmenstorf covers 8.3 km², with a density of 385 people per km².
Is the population of Sarmenstorf growing?
Between 2015 and 2025, the population of Sarmenstorf went from 2,805 to 3,194, a change of +13.9%.
Where is Sarmenstorf?
Sarmenstorf is in Aargau. It belongs to Bezirk Bremgarten (district). Latitude 47.312, longitude 8.250.
Dwellings in buildings built since 2001: what is the figure for Sarmenstorf?
In Sarmenstorf, “Dwellings in buildings built since 2001” stands at 37.5% (2026), ranking 239 of 1,806 municipalities; the national median is 25.3%.
Jobs per 1,000 inhabitants: what is the figure for Sarmenstorf?
In Sarmenstorf, “Jobs per 1,000 inhabitants” stands at 241.7 (2024), ranking 1,401 of 1,810 municipalities; the national median is 362.9.
How much electricity does a solar panel produce in Sarmenstorf?
In Sarmenstorf, a 1 kWp south-facing system tilted at 37° produces about 1,150 kWh a year.
Which municipalities border Sarmenstorf?
The nearest to Sarmenstorf are Fahrwangen (1.9 km), Uezwil (1.9 km), Meisterschwanden (2.3 km), Büttikon (2.4 km), Bettwil (2.6 km).