Zetzwil: population and statistics
Zetzwil has a population of 1,402 (2025) across 5.8 km², or 242 people per km². It ranks 1,224 of 2,115 municipalities by population. Its population is growing: +6.2% between 2015 and 2025.
- 1,402 residents
- 5.8 km²
- 242 people/km²
- 528 m
Key points
Among the 197 municipalities in Aargau, Zetzwil ranks No. 141 by population.
Share of single-family houses among residential buildings: 79.8% in Zetzwil, compared with an average of 70.4% in Aargau and 56.9% nationally.
Entities in the commercial register per 1,000 inhabitants: 49.9 in Zetzwil, compared with an average of 62.0 in Aargau and 83.6 nationally.
A 1 kWp solar panel tilted at 37° generates about 1,153 kWh a year here.
Zetzwil in numbers
Where is Zetzwil?
Population of Zetzwil over time
Zetzwil had 1,320 residents in 2015 and 1,402 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,363 |
| 2021 | 1,373 |
| 2022 | 1,382 |
| 2023 | 1,394 |
| 2024 | 1,381 |
| 2025 | 1,402 |
Did you know?
- Its area is roughly equal to 812 football pitches.
- The nearest more populous municipality is Gontenschwil (2,249 residents), 1.8 km away.
- A 4 kWp rooftop solar system here would generate about 4,612 kWh a year, roughly what an average household uses.
All indicators for Zetzwil
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 | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 22.9% | 19.5% | 20.7% | ranked 549 of 1,811 |
Housing
| Indicator | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 659 | 355,613 | 4,927,050 | ranked 1,324 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 23.7% | 16.6% | 23.3% | ranked 884 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 17.3% | 30.9% | 25.3% | ranked 1,411 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 79.8% | 70.4% | 69.5% | ranked 233 of 1,806 |
Energy
| Indicator | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 60.5% | 66.6% | 53.5% | ranked 670 of 1,806 | |
| Heat pumps as main heating (2026) | 8.6% | 11.6% | 13.7% | ranked 1,354 of 1,806 | |
| Wood heating systems (2026) | 22.7% | 8.3% | 12.4% | ranked 436 of 1,806 | |
| District heating (2026) | 0.8% | 6.5% | 1.4% | ranked 1,099 of 1,806 | |
| Photovoltaic installations (2026) | 70 | 26,039 | 329,600 | ranked 1,350 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 940.2 kW | 997.1 kW | 1,134 kW | ranked 1,191 of 1,806 | |
| Rooftop solar electricity potential (2026) | 14.6 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,257 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 10,428 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 730 of 1,810 |
Economy
| Indicator | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 79 | 47,193 | 728,011 | ranked 1,418 of 2,112 | |
| Entities listed in the commercial register (2026) | 70 | 46,143 | 762,757 | ranked 1,389 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 49.9 | 62.0 | 64.9 | ranked 1,518 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 60.0% | 66.6% | 65.7% | ranked 1,373 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 35.7% | 29.1% | 29.0% | ranked 350 of 1,808 |
Employment
| Indicator | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 563 | 364,295 | 5,679,518 | ranked 1,103 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 401.6 | 489.8 | 362.9 | ranked 769 of 1,810 | |
| Share of jobs in services (2024) | 69.6% | 69.1% | 63.6% | ranked 667 of 1,804 | |
| Share of jobs in industry and construction (2024) | 22.6% | 26.5% | 24.2% | ranked 956 of 1,776 |
Society
| Indicator | Zetzwil | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 14.9% | 28.1% | 18.9% | ranked 1,200 of 1,811 |
Sunshine and temperatures: Zetzwil
Frequently asked questions
What is the population of Zetzwil?
Zetzwil has 1,402 residents (2025), ranking 1,224 of 2,115 municipalities.
How big is Zetzwil?
Zetzwil covers 5.8 km², with a density of 242 people per km².
Is the population of Zetzwil growing?
Between 2015 and 2025, the population of Zetzwil went from 1,320 to 1,402, a change of +6.2%.
Where is Zetzwil?
Zetzwil is in Aargau. It belongs to Bezirk Kulm (district). Latitude 47.289, longitude 8.153.
Share of single-family houses among residential buildings: what is the figure for Zetzwil?
In Zetzwil, “Share of single-family houses among residential buildings” stands at 79.8% (2026), ranking 233 of 1,806 municipalities; the national median is 69.5%.
Entities in the commercial register per 1,000 inhabitants: what is the figure for Zetzwil?
In Zetzwil, “Entities in the commercial register per 1,000 inhabitants” stands at 49.9 (2026), ranking 1,518 of 1,811 municipalities; the national median is 64.9.
How much electricity does a solar panel produce in Zetzwil?
In Zetzwil, a 1 kWp south-facing system tilted at 37° produces about 1,153 kWh a year.
Which municipalities border Zetzwil?
The nearest to Zetzwil are Gontenschwil (1.8 km), Leimbach (AG) (2.1 km), Oberkulm (2.5 km), Leutwil (2.9 km), Birrwil (3.3 km).