Sirnach: population and statistics
Sirnach has a population of 8,387 (2025) across 12.4 km², or 678 people per km². It ranks 235 of 2,115 municipalities by population. Its population is growing: +9.3% between 2015 and 2025.
- 8,387 residents
- 12.4 km²
- 678 people/km²
- 526 m
Key points
Among the 80 municipalities in Thurgau, Sirnach ranks No. 8 by population.
A 1 kWp solar panel tilted at 37° generates about 1,140 kWh a year here.
Sirnach in numbers
Where is Sirnach?
Population of Sirnach over time
Sirnach had 7,675 residents in 2015 and 8,387 in 2025.
| Year | Population |
|---|---|
| 2020 | 7,901 |
| 2021 | 7,936 |
| 2022 | 7,963 |
| 2023 | 8,133 |
| 2024 | 8,200 |
| 2025 | 8,387 |
Did you know?
- “Photovoltaic installations”: higher than in 95% of municipalities.
- “Entities listed in the commercial register”: higher than in 90% of municipalities.
- Its area is roughly equal to 1,734 football pitches.
- Its population density is 2.9 times the national average.
- The nearest municipality is Münchwilen (TG), 1.8 km away.
- The nearest more populous municipality is Wil (SG) (25,444 residents), 3.8 km away.
- A 4 kWp rooftop solar system here would generate about 4,560 kWh a year, roughly what an average household uses.
All indicators for Sirnach
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 | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 19.1% | 20.0% | 20.7% | ranked 1,197 of 1,811 |
Housing
| Indicator | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 4,085 | 150,781 | 4,927,050 | ranked 258 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 16.7% | 23.6% | 23.3% | ranked 1,259 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 32.3% | 29.8% | 25.3% | ranked 464 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 70.7% | 69.2% | 69.5% | ranked 828 of 1,806 |
Energy
| Indicator | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 74.4% | 61.9% | 53.5% | ranked 217 of 1,806 | |
| Heat pumps as main heating (2026) | 16.6% | 19.9% | 13.7% | ranked 745 of 1,806 | |
| Wood heating systems (2026) | 6.3% | 10.7% | 12.4% | ranked 1,341 of 1,806 | |
| District heating (2026) | 0.9% | 4.2% | 1.4% | ranked 1,058 of 1,806 | |
| Photovoltaic installations (2026) | 435 | 16,905 | 329,600 | ranked 115 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,488 kW | 1,628 kW | 1,134 kW | ranked 544 of 1,806 | |
| Rooftop solar electricity potential (2026) | 60.8 GWh/year | 2,818 GWh/year | 64,783 GWh/year | ranked 235 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,251 kWh/inh. | 9,306 kWh/inh. | 9,356 kWh/inh. | ranked 1,335 of 1,810 |
Economy
| Indicator | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 558 | 22,185 | 728,011 | ranked 250 of 2,112 | |
| Entities listed in the commercial register (2026) | 651 | 23,532 | 762,757 | ranked 217 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 77.6 | 77.7 | 64.9 | ranked 503 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 72.4% | 68.3% | 65.7% | ranked 351 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 24.1% | 27.0% | 29.0% | ranked 1,336 of 1,808 |
Employment
| Indicator | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 4,209 | 149,746 | 5,679,518 | ranked 232 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 501.8 | 494.5 | 362.9 | ranked 483 of 1,810 | |
| Share of jobs in services (2024) | 72.6% | 64.1% | 63.6% | ranked 560 of 1,804 | |
| Share of jobs in industry and construction (2024) | 25.2% | 28.3% | 24.2% | ranked 840 of 1,776 |
Society
| Indicator | Sirnach | Thurgau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 25.7% | 27.9% | 18.9% | ranked 498 of 1,811 |
Sunshine and temperatures: Sirnach
Frequently asked questions
What is the population of Sirnach?
Sirnach has 8,387 residents (2025), ranking 235 of 2,115 municipalities.
How big is Sirnach?
Sirnach covers 12.4 km², with a density of 678 people per km².
Is the population of Sirnach growing?
Between 2015 and 2025, the population of Sirnach went from 7,675 to 8,387, a change of +9.3%.
Where is Sirnach?
Sirnach is in Thurgau. It belongs to Bezirk Münchwilen (district). Latitude 47.466, longitude 9.000.
Photovoltaic installations: what is the figure for Sirnach?
In Sirnach, “Photovoltaic installations” stands at 435 (2026), ranking 115 of 2,108 municipalities; the national median is 103.
Entities listed in the commercial register: what is the figure for Sirnach?
In Sirnach, “Entities listed in the commercial register” stands at 651 (2026), ranking 217 of 2,115 municipalities; the national median is 118.
How much electricity does a solar panel produce in Sirnach?
In Sirnach, a 1 kWp south-facing system tilted at 37° produces about 1,140 kWh a year.
Which municipalities border Sirnach?
The nearest to Sirnach are Münchwilen (TG) (1.8 km), Wilen (TG) (3.1 km), Eschlikon (3.1 km), Wil (SG) (3.8 km), Rickenbach (TG) (4.2 km).