Altnau: population and statistics
Altnau has a population of 2,351 (2025) across 6.7 km², or 349 people per km². It ranks 886 of 2,115 municipalities by population. Its population is growing: +9.4% between 2015 and 2025.
- 2,351 residents
- 6.7 km²
- 349 people/km²
- 468 m
Key points
Among the 80 municipalities in Thurgau, Altnau ranks No. 41 by population.
Entities in the commercial register per 1,000 inhabitants: 89.7 in Altnau, compared with an average of 77.7 in Thurgau and 83.6 nationally.
Installed photovoltaic capacity per 1,000 inhabitants: 1,734 kW in Altnau, compared with an average of 1,628 kW in Thurgau and 919.4 kW nationally.
A 1 kWp solar panel tilted at 37° generates about 1,138 kWh a year here.
Altnau in numbers
Where is Altnau?
Population of Altnau over time
Altnau had 2,149 residents in 2015 and 2,351 in 2025.
| Year | Population |
|---|---|
| 2020 | 2,343 |
| 2021 | 2,323 |
| 2022 | 2,347 |
| 2023 | 2,356 |
| 2024 | 2,355 |
| 2025 | 2,351 |
Did you know?
- Its area is roughly equal to 943 football pitches.
- The nearest municipality is Langrickenbach, 1.8 km away.
- The nearest more populous municipality is Münsterlingen (3,726 residents), 3.4 km away.
- A 4 kWp rooftop solar system here would generate about 4,552 kWh a year, roughly what an average household uses.
All indicators for Altnau
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 | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 20.5% | 20.0% | 20.7% | ranked 946 of 1,811 |
Housing
| Indicator | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 1,156 | 150,781 | 4,927,050 | ranked 953 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 28.9% | 23.6% | 23.3% | ranked 628 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 29.0% | 29.8% | 25.3% | ranked 670 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 76.3% | 69.2% | 69.5% | ranked 454 of 1,806 |
Energy
| Indicator | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 67.2% | 61.9% | 53.5% | ranked 444 of 1,806 | |
| Heat pumps as main heating (2026) | 19.9% | 19.9% | 13.7% | ranked 566 of 1,806 | |
| Wood heating systems (2026) | 8.2% | 10.7% | 12.4% | ranked 1,189 of 1,806 | |
| District heating (2026) | 3.2% | 4.2% | 1.4% | ranked 616 of 1,806 | |
| Photovoltaic installations (2026) | 189 | 16,905 | 329,600 | ranked 563 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,734 kW | 1,628 kW | 1,134 kW | ranked 359 of 1,806 | |
| Rooftop solar electricity potential (2026) | 22.3 GWh/year | 2,818 GWh/year | 64,783 GWh/year | ranked 933 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 9,498 kWh/inh. | 9,306 kWh/inh. | 9,356 kWh/inh. | ranked 878 of 1,810 |
Economy
| Indicator | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 197 | 22,185 | 728,011 | ranked 776 of 2,112 | |
| Entities listed in the commercial register (2026) | 211 | 23,532 | 762,757 | ranked 705 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 89.7 | 77.7 | 64.9 | ranked 298 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 64.5% | 68.3% | 65.7% | ranked 1,009 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 31.3% | 27.0% | 29.0% | ranked 698 of 1,808 |
Employment
| Indicator | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 897 | 149,746 | 5,679,518 | ranked 879 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 381.5 | 494.5 | 362.9 | ranked 839 of 1,810 | |
| Share of jobs in services (2024) | 64.2% | 64.1% | 63.6% | ranked 871 of 1,804 | |
| Share of jobs in industry and construction (2024) | 22.4% | 28.3% | 24.2% | ranked 962 of 1,776 |
Society
| Indicator | Altnau | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 23.0% | 27.9% | 18.9% | ranked 625 of 1,811 |
Sunshine and temperatures: Altnau
Frequently asked questions
What is the population of Altnau?
Altnau has 2,351 residents (2025), ranking 886 of 2,115 municipalities.
How big is Altnau?
Altnau covers 6.7 km², with a density of 349 people per km².
Is the population of Altnau growing?
Between 2015 and 2025, the population of Altnau went from 2,149 to 2,351, a change of +9.4%.
Where is Altnau?
Altnau is in Thurgau. It belongs to Bezirk Kreuzlingen (district). Latitude 47.607, longitude 9.261.
Entities in the commercial register per 1,000 inhabitants: what is the figure for Altnau?
In Altnau, “Entities in the commercial register per 1,000 inhabitants” stands at 89.7 (2026), ranking 298 of 1,811 municipalities; the national median is 64.9.
Installed photovoltaic capacity per 1,000 inhabitants: what is the figure for Altnau?
In Altnau, “Installed photovoltaic capacity per 1,000 inhabitants” stands at 1,734 kW (2026), ranking 359 of 1,806 municipalities; the national median is 1,134 kW.
How much electricity does a solar panel produce in Altnau?
In Altnau, a 1 kWp south-facing system tilted at 37° produces about 1,138 kWh a year.
Which municipalities border Altnau?
The nearest to Altnau are Langrickenbach (1.8 km), Güttingen (2.2 km), Münsterlingen (3.4 km), Kesswil (4.5 km), Sommeri (4.8 km).