Klingnau: population and statistics
Klingnau has a population of 3,710 (2025) across 6.7 km², or 553 people per km². It ranks 609 of 2,115 municipalities by population. Its population is growing: +12.0% between 2015 and 2025.
- 3,710 residents
- 6.7 km²
- 553 people/km²
- 322 m
Key points
Among the 197 municipalities in Aargau, Klingnau ranks No. 71 by population.
District heating: 53.0% in Klingnau, compared with an average of 6.5% in Aargau and 7.3% nationally.
Share of foreign nationals: 30.9% in Klingnau, compared with an average of 28.1% in Aargau and 27.7% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,151 kWh a year here.
Klingnau in numbers
Where is Klingnau?
Population of Klingnau over time
Klingnau had 3,312 residents in 2015 and 3,710 in 2025.
| Year | Population |
|---|---|
| 2020 | 3,540 |
| 2021 | 3,539 |
| 2022 | 3,603 |
| 2023 | 3,673 |
| 2024 | 3,700 |
| 2025 | 3,710 |
Did you know?
- “District heating”: higher than in 99% of municipalities.
- Its area is roughly equal to 940 football pitches.
- Its population density is 2.4 times the national average.
- The nearest municipality is Döttingen, 1.6 km away.
- The nearest more populous municipality is Zurzach (8,346 residents), 3.3 km away.
- A 4 kWp rooftop solar system here would generate about 4,604 kWh a year, roughly what an average household uses.
All indicators for Klingnau
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 | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 22.3% | 19.5% | 20.7% | ranked 660 of 1,811 |
Housing
| Indicator | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 1,757 | 355,613 | 4,927,050 | ranked 680 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 18.1% | 16.6% | 23.3% | ranked 1,177 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 26.9% | 30.9% | 25.3% | ranked 788 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 76.1% | 70.4% | 69.5% | ranked 467 of 1,806 |
Energy
| Indicator | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 25.6% | 66.6% | 53.5% | ranked 1,701 of 1,806 | |
| Heat pumps as main heating (2026) | 6.2% | 11.6% | 13.7% | ranked 1,570 of 1,806 | |
| Wood heating systems (2026) | 5.2% | 8.3% | 12.4% | ranked 1,429 of 1,806 | |
| District heating (2026) | 53.0% | 6.5% | 1.4% | ranked 8 of 1,806 | |
| Photovoltaic installations (2026) | 102 | 26,039 | 329,600 | ranked 1,065 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,115 kW | 997.1 kW | 1,134 kW | ranked 927 of 1,806 | |
| Rooftop solar electricity potential (2026) | 29.3 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 694 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,908 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,192 of 1,810 |
Economy
| Indicator | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 204 | 47,193 | 728,011 | ranked 751 of 2,112 | |
| Entities listed in the commercial register (2026) | 212 | 46,143 | 762,757 | ranked 701 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 57.1 | 62.0 | 64.9 | ranked 1,260 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 65.1% | 66.6% | 65.7% | ranked 950 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 29.7% | 29.1% | 29.0% | ranked 839 of 1,808 |
Employment
| Indicator | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 1,064 | 364,295 | 5,679,518 | ranked 786 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 286.8 | 489.8 | 362.9 | ranked 1,219 of 1,810 | |
| Share of jobs in services (2024) | 65.5% | 69.1% | 63.6% | ranked 822 of 1,804 | |
| Share of jobs in industry and construction (2024) | 31.8% | 26.5% | 24.2% | ranked 559 of 1,776 |
Society
| Indicator | Klingnau | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 30.9% | 28.1% | 18.9% | ranked 269 of 1,811 |
Sunshine and temperatures: Klingnau
Frequently asked questions
What is the population of Klingnau?
Klingnau has 3,710 residents (2025), ranking 609 of 2,115 municipalities.
How big is Klingnau?
Klingnau covers 6.7 km², with a density of 553 people per km².
Is the population of Klingnau growing?
Between 2015 and 2025, the population of Klingnau went from 3,312 to 3,710, a change of +12.0%.
Where is Klingnau?
Klingnau is in Aargau. It belongs to Bezirk Zurzach (district). Latitude 47.583, longitude 8.250.
District heating: what is the figure for Klingnau?
In Klingnau, “District heating” stands at 53.0% (2026), ranking 8 of 1,806 municipalities; the national median is 1.4%.
Share of foreign nationals: what is the figure for Klingnau?
In Klingnau, “Share of foreign nationals” stands at 30.9% (2025), ranking 269 of 1,811 municipalities; the national median is 18.9%.
How much electricity does a solar panel produce in Klingnau?
In Klingnau, a 1 kWp south-facing system tilted at 37° produces about 1,151 kWh a year.
Which municipalities border Klingnau?
The nearest to Klingnau are Döttingen (1.6 km), Leuggern (2.3 km), Koblenz (3.1 km), Zurzach (3.3 km), Böttstein (3.5 km).