Kaltbrunn: population and statistics
Kaltbrunn has a population of 5,128 (2025) across 18.7 km², or 274 people per km². It ranks 424 of 2,115 municipalities by population. Its population is growing: +7.1% between 2015 and 2025.
- 5,128 residents
- 18.7 km²
- 274 people/km²
- 485 m
Key points
Among the 75 municipalities in St. Gallen, Kaltbrunn ranks No. 40 by population.
Dwellings in buildings built since 2001: 37.9% in Kaltbrunn, compared with an average of 24.8% in St. Gallen and 24.6% nationally.
A 1 kWp solar panel tilted at 39° generates about 1,180 kWh a year here.
Kaltbrunn in numbers
Where is Kaltbrunn?
Population of Kaltbrunn over time
Kaltbrunn had 4,788 residents in 2015 and 5,128 in 2025.
| Year | Population |
|---|---|
| 2020 | 4,976 |
| 2021 | 5,029 |
| 2022 | 5,051 |
| 2023 | 5,084 |
| 2024 | 5,099 |
| 2025 | 5,128 |
Did you know?
- Its area is roughly equal to 2,616 football pitches.
- The nearest municipality is Gommiswald, 2.9 km away.
- The nearest more populous municipality is Eschenbach (SG) (10,401 residents), 7.7 km away.
- A 4 kWp rooftop solar system here would generate about 4,720 kWh a year, roughly what an average household uses.
All indicators for Kaltbrunn
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 | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 19.1% | 19.9% | 20.7% | ranked 1,201 of 1,811 |
Housing
| Indicator | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,412 | 280,853 | 4,927,050 | ranked 496 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 18.7% | 23.5% | 23.3% | ranked 1,139 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 37.9% | 24.8% | 25.3% | ranked 220 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 59.2% | 64.1% | 69.5% | ranked 1,405 of 1,806 |
Energy
| Indicator | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 54.7% | 52.2% | 53.5% | ranked 876 of 1,806 | |
| Heat pumps as main heating (2026) | 26.7% | 30.7% | 13.7% | ranked 321 of 1,806 | |
| Wood heating systems (2026) | 12.4% | 9.0% | 12.4% | ranked 903 of 1,806 | |
| District heating (2026) | 4.0% | 6.0% | 1.4% | ranked 533 of 1,806 | |
| Photovoltaic installations (2026) | 279 | 26,111 | 329,600 | ranked 307 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,070 kW | 1,325 kW | 1,134 kW | ranked 997 of 1,806 | |
| Rooftop solar electricity potential (2026) | 40.7 GWh/year | 4,072 GWh/year | 64,783 GWh/year | ranked 453 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,933 kWh/inh. | 7,485 kWh/inh. | 9,356 kWh/inh. | ranked 1,183 of 1,810 |
Economy
| Indicator | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 351 | 39,699 | 728,011 | ranked 415 of 2,112 | |
| Entities listed in the commercial register (2026) | 352 | 42,658 | 762,757 | ranked 429 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 68.6 | 78.4 | 64.9 | ranked 763 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 65.6% | 65.2% | 65.7% | ranked 917 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 31.5% | 29.2% | 29.0% | ranked 684 of 1,808 |
Employment
| Indicator | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 1,854 | 317,461 | 5,679,518 | ranked 503 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 361.5 | 583.5 | 362.9 | ranked 910 of 1,810 | |
| Share of jobs in services (2024) | 55.9% | 64.9% | 63.6% | ranked 1,165 of 1,804 | |
| Share of jobs in industry and construction (2024) | 37.3% | 30.3% | 24.2% | ranked 361 of 1,776 |
Society
| Indicator | Kaltbrunn | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 21.1% | 27.2% | 18.9% | ranked 733 of 1,811 |
Sunshine and temperatures: Kaltbrunn
Frequently asked questions
What is the population of Kaltbrunn?
Kaltbrunn has 5,128 residents (2025), ranking 424 of 2,115 municipalities.
How big is Kaltbrunn?
Kaltbrunn covers 18.7 km², with a density of 274 people per km².
Is the population of Kaltbrunn growing?
Between 2015 and 2025, the population of Kaltbrunn went from 4,788 to 5,128, a change of +7.1%.
Where is Kaltbrunn?
Kaltbrunn is in St. Gallen. It belongs to Wahlkreis See-Gaster (district). Latitude 47.216, longitude 9.033.
Dwellings in buildings built since 2001: what is the figure for Kaltbrunn?
In Kaltbrunn, “Dwellings in buildings built since 2001” stands at 37.9% (2026), ranking 220 of 1,806 municipalities; the national median is 25.3%.
Photovoltaic installations: what is the figure for Kaltbrunn?
In Kaltbrunn, “Photovoltaic installations” stands at 279 (2026), ranking 307 of 2,108 municipalities; the national median is 103.
How much electricity does a solar panel produce in Kaltbrunn?
In Kaltbrunn, a 1 kWp south-facing system tilted at 39° produces about 1,180 kWh a year.
Which municipalities border Kaltbrunn?
The nearest to Kaltbrunn are Gommiswald (2.9 km), Uznach (3.8 km), Benken (SG) (3.9 km), Schmerikon (6.4 km), Schänis (6.5 km).