Wittnau: population and statistics
Wittnau has a population of 1,449 (2025) across 11.2 km², or 129 people per km². It ranks 1,197 of 2,115 municipalities by population. Its population is growing: +19.2% between 2015 and 2025.
- 1,449 residents
- 11.2 km²
- 129 people/km²
- 406 m
Key points
Among the 197 municipalities in Aargau, Wittnau ranks No. 138 by population.
Installed photovoltaic capacity per 1,000 inhabitants: 2,316 kW in Wittnau, compared with an average of 997.1 kW in Aargau and 919.4 kW nationally.
Jobs per 1,000 inhabitants: 182.9 in Wittnau, compared with an average of 489.8 in Aargau and 622.5 nationally.
A 1 kWp solar panel tilted at 35° generates about 1,121 kWh a year here.
Wittnau in numbers
Where is Wittnau?
Population of Wittnau over time
Wittnau had 1,216 residents in 2015 and 1,449 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,365 |
| 2021 | 1,388 |
| 2022 | 1,385 |
| 2023 | 1,411 |
| 2024 | 1,429 |
| 2025 | 1,449 |
Did you know?
- “Installed photovoltaic capacity per 1,000 inhabitants”: higher than in 93% of municipalities.
- “Jobs per 1,000 inhabitants”: lower than in 90% of municipalities.
- Its area is roughly equal to 1,576 football pitches.
- The nearest municipality is Wölflinswil, 2.7 km away.
- The nearest more populous municipality is Gipf-Oberfrick (3,886 residents), 2.9 km away.
- A 4 kWp rooftop solar system here would generate about 4,484 kWh a year, roughly what an average household uses.
All indicators for Wittnau
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 | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 19.6% | 19.5% | 20.7% | ranked 1,112 of 1,811 |
Housing
| Indicator | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 678 | 355,613 | 4,927,050 | ranked 1,301 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 25.4% | 16.6% | 23.3% | ranked 786 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 30.5% | 30.9% | 25.3% | ranked 560 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 74.1% | 70.4% | 69.5% | ranked 604 of 1,806 |
Energy
| Indicator | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 37.0% | 66.6% | 53.5% | ranked 1,451 of 1,806 | |
| Heat pumps as main heating (2026) | 18.1% | 11.6% | 13.7% | ranked 654 of 1,806 | |
| Wood heating systems (2026) | 31.7% | 8.3% | 12.4% | ranked 224 of 1,806 | |
| District heating (2026) | 4.0% | 6.5% | 1.4% | ranked 536 of 1,806 | |
| Photovoltaic installations (2026) | 106 | 26,039 | 329,600 | ranked 1,031 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 2,316 kW | 997.1 kW | 1,134 kW | ranked 135 of 1,806 | |
| Rooftop solar electricity potential (2026) | 14.0 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,289 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 9,676 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 849 of 1,810 |
Economy
| Indicator | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 96 | 47,193 | 728,011 | ranked 1,284 of 2,112 | |
| Entities listed in the commercial register (2026) | 77 | 46,143 | 762,757 | ranked 1,336 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 53.1 | 62.0 | 64.9 | ranked 1,410 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 66.2% | 66.6% | 65.7% | ranked 852 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 29.9% | 29.1% | 29.0% | ranked 826 of 1,808 |
Employment
| Indicator | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 265 | 364,295 | 5,679,518 | ranked 1,483 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 182.9 | 489.8 | 362.9 | ranked 1,621 of 1,810 | |
| Share of jobs in services (2024) | 44.5% | 69.1% | 63.6% | ranked 1,492 of 1,804 | |
| Share of jobs in industry and construction (2024) | 39.2% | 26.5% | 24.2% | ranked 310 of 1,776 |
Society
| Indicator | Wittnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 12.1% | 28.1% | 18.9% | ranked 1,405 of 1,811 |
Sunshine and temperatures: Wittnau
Frequently asked questions
What is the population of Wittnau?
Wittnau has 1,449 residents (2025), ranking 1,197 of 2,115 municipalities.
How big is Wittnau?
Wittnau covers 11.2 km², with a density of 129 people per km².
Is the population of Wittnau growing?
Between 2015 and 2025, the population of Wittnau went from 1,216 to 1,449, a change of +19.2%.
Where is Wittnau?
Wittnau is in Aargau. It belongs to Bezirk Laufenburg (district). Latitude 47.481, longitude 7.978.
Installed photovoltaic capacity per 1,000 inhabitants: what is the figure for Wittnau?
In Wittnau, “Installed photovoltaic capacity per 1,000 inhabitants” stands at 2,316 kW (2026), ranking 135 of 1,806 municipalities; the national median is 1,134 kW.
Jobs per 1,000 inhabitants: what is the figure for Wittnau?
In Wittnau, “Jobs per 1,000 inhabitants” stands at 182.9 (2024), ranking 1,621 of 1,810 municipalities; the national median is 362.9.
How much electricity does a solar panel produce in Wittnau?
In Wittnau, a 1 kWp south-facing system tilted at 35° produces about 1,121 kWh a year.
Which municipalities border Wittnau?
The nearest to Wittnau are Wölflinswil (2.7 km), Gipf-Oberfrick (2.9 km), Schupfart (3.9 km), Wegenstetten (3.9 km), Oberhof (4.0 km).