Flums: population and statistics
Flums has a population of 5,458 (2025) across 75.2 km², or 72.6 people per km². It ranks 388 of 2,115 municipalities by population. Its population is growing: +12.1% between 2015 and 2025.
- 5,458 residents
- 75.2 km²
- 73 people/km²
- 453 m
Key points
Among the 75 municipalities in St. Gallen, Flums ranks No. 34 by population.
A 1 kWp solar panel tilted at 40° generates about 1,178 kWh a year here.
Flums in numbers
Where is Flums?
Population of Flums over time
Flums had 4,869 residents in 2015 and 5,458 in 2025.
| Year | Population |
|---|---|
| 2020 | 4,964 |
| 2021 | 5,074 |
| 2022 | 5,211 |
| 2023 | 5,347 |
| 2024 | 5,400 |
| 2025 | 5,458 |
Did you know?
- Its area is roughly equal to 10,525 football pitches.
- Its population density is 3.2 times lower than the national average.
- The nearest municipality is Walenstadt, 4.0 km away.
- The nearest more populous municipality is Mels (9,581 residents), 7.3 km away.
- A 4 kWp rooftop solar system here would generate about 4,712 kWh a year, roughly what an average household uses.
All indicators for Flums
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 | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 19.9% | 19.9% | 20.7% | ranked 1,054 of 1,811 |
Housing
| Indicator | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 4,260 | 280,853 | 4,927,050 | ranked 247 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 24.9% | 23.5% | 23.3% | ranked 809 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 20.3% | 24.8% | 25.3% | ranked 1,227 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 66.0% | 64.1% | 69.5% | ranked 1,100 of 1,806 |
Energy
| Indicator | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 48.8% | 52.2% | 53.5% | ranked 1,078 of 1,806 | |
| Heat pumps as main heating (2026) | 19.4% | 30.7% | 13.7% | ranked 586 of 1,806 | |
| Wood heating systems (2026) | 24.0% | 9.0% | 12.4% | ranked 390 of 1,806 | |
| District heating (2026) | 2.7% | 6.0% | 1.4% | ranked 677 of 1,806 | |
| Photovoltaic installations (2026) | 294 | 26,111 | 329,600 | ranked 285 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,423 kW | 1,325 kW | 1,134 kW | ranked 614 of 1,806 | |
| Rooftop solar electricity potential (2026) | 51.7 GWh/year | 4,072 GWh/year | 64,783 GWh/year | ranked 304 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 9,471 kWh/inh. | 7,485 kWh/inh. | 9,356 kWh/inh. | ranked 881 of 1,810 |
Economy
| Indicator | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 426 | 39,699 | 728,011 | ranked 330 of 2,112 | |
| Entities listed in the commercial register (2026) | 365 | 42,658 | 762,757 | ranked 414 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 66.9 | 78.4 | 64.9 | ranked 829 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 64.9% | 65.2% | 65.7% | ranked 970 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 31.0% | 29.2% | 29.0% | ranked 726 of 1,808 |
Employment
| Indicator | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 2,539 | 317,461 | 5,679,518 | ranked 383 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 465.2 | 583.5 | 362.9 | ranked 571 of 1,810 | |
| Share of jobs in services (2024) | 53.5% | 64.9% | 63.6% | ranked 1,251 of 1,804 | |
| Share of jobs in industry and construction (2024) | 36.5% | 30.3% | 24.2% | ranked 387 of 1,776 |
Society
| Indicator | Flums | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 24.1% | 27.2% | 18.9% | ranked 566 of 1,811 |
Sunshine and temperatures: Flums
Frequently asked questions
What is the population of Flums?
Flums has 5,458 residents (2025), ranking 388 of 2,115 municipalities.
How big is Flums?
Flums covers 75.2 km², with a density of 73 people per km².
Is the population of Flums growing?
Between 2015 and 2025, the population of Flums went from 4,869 to 5,458, a change of +12.1%.
Where is Flums?
Flums is in St. Gallen. It belongs to Wahlkreis Sarganserland (district). Latitude 47.093, longitude 9.344.
Dwellings: what is the figure for Flums?
In Flums, “Dwellings” stands at 4,260 (2026), ranking 247 of 2,108 municipalities; the national median is 990.
Photovoltaic installations: what is the figure for Flums?
In Flums, “Photovoltaic installations” stands at 294 (2026), ranking 285 of 2,108 municipalities; the national median is 103.
How much electricity does a solar panel produce in Flums?
In Flums, a 1 kWp south-facing system tilted at 40° produces about 1,178 kWh a year.
Which municipalities border Flums?
The nearest to Flums are Walenstadt (4.0 km), Mels (7.3 km), Quarten (8.4 km), Sargans (8.8 km), Wartau (11 km).