Rüthi (SG): population and statistics
Rüthi (SG) has a population of 2,667 (2025) across 9.3 km², or 286 people per km². It ranks 805 of 2,115 municipalities by population. Its population is growing: +18.2% between 2015 and 2025.
- 2,667 residents
- 9.3 km²
- 286 people/km²
- 435 m
Key points
Among the 75 municipalities in St. Gallen, Rüthi (SG) ranks No. 59 by population.
Share of jobs in industry and construction: 60.7% in Rüthi (SG), compared with an average of 30.3% in St. Gallen and 22.0% nationally.
Heat pumps as main heating: 38.4% in Rüthi (SG), compared with an average of 30.7% in St. Gallen and 15.5% nationally.
A 1 kWp solar panel tilted at 40° generates about 1,202 kWh a year here.
Rüthi (SG) in numbers
Where is Rüthi (SG)?
Population of Rüthi (SG) over time
Rüthi (SG) had 2,256 residents in 2015 and 2,667 in 2025.
| Year | Population |
|---|---|
| 2020 | 2,445 |
| 2021 | 2,447 |
| 2022 | 2,472 |
| 2023 | 2,542 |
| 2024 | 2,633 |
| 2025 | 2,667 |
Did you know?
- “Share of jobs in industry and construction”: higher than in 98% of municipalities.
- “Heat pumps as main heating”: higher than in 94% of municipalities.
- “Share of single-family houses among residential buildings”: higher than in 91% of municipalities.
- Its area is roughly equal to 1,308 football pitches.
- The nearest more populous municipality is Oberriet (SG) (9,417 residents), 3.2 km away.
- A 4 kWp rooftop solar system here would generate about 4,808 kWh a year, roughly what an average household uses.
All indicators for Rüthi (SG)
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 | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 16.6% | 19.9% | 20.7% | ranked 1,560 of 1,811 |
Housing
| Indicator | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 1,296 | 280,853 | 4,927,050 | ranked 877 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 19.4% | 23.5% | 23.3% | ranked 1,088 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 38.4% | 24.8% | 25.3% | ranked 207 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 81.2% | 64.1% | 69.5% | ranked 171 of 1,806 |
Energy
| Indicator | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 44.7% | 52.2% | 53.5% | ranked 1,220 of 1,806 | |
| Heat pumps as main heating (2026) | 38.4% | 30.7% | 13.7% | ranked 104 of 1,806 | |
| Wood heating systems (2026) | 14.3% | 9.0% | 12.4% | ranked 799 of 1,806 | |
| District heating (2026) | 1.1% | 6.0% | 1.4% | ranked 981 of 1,806 | |
| Photovoltaic installations (2026) | 196 | 26,111 | 329,600 | ranked 529 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 2,311 kW | 1,325 kW | 1,134 kW | ranked 138 of 1,806 | |
| Rooftop solar electricity potential (2026) | 30.1 GWh/year | 4,072 GWh/year | 64,783 GWh/year | ranked 674 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 11,279 kWh/inh. | 7,485 kWh/inh. | 9,356 kWh/inh. | ranked 618 of 1,810 |
Economy
| Indicator | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 175 | 39,699 | 728,011 | ranked 866 of 2,112 | |
| Entities listed in the commercial register (2026) | 214 | 42,658 | 762,757 | ranked 694 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 80.2 | 78.4 | 64.9 | ranked 442 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 60.7% | 65.2% | 65.7% | ranked 1,338 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 32.7% | 29.2% | 29.0% | ranked 589 of 1,808 |
Employment
| Indicator | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 1,268 | 317,461 | 5,679,518 | ranked 701 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 475.4 | 583.5 | 362.9 | ranked 546 of 1,810 | |
| Share of jobs in services (2024) | 36.8% | 64.9% | 63.6% | ranked 1,665 of 1,804 | |
| Share of jobs in industry and construction (2024) | 60.7% | 30.3% | 24.2% | ranked 45 of 1,776 |
Society
| Indicator | Rüthi (SG) | St. Gallen | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 29.1% | 27.2% | 18.9% | ranked 331 of 1,811 |
Sunshine and temperatures: Rüthi (SG)
Frequently asked questions
What is the population of Rüthi (SG)?
Rüthi (SG) has 2,667 residents (2025), ranking 805 of 2,115 municipalities.
How big is Rüthi (SG)?
Rüthi (SG) covers 9.3 km², with a density of 286 people per km².
Is the population of Rüthi (SG) growing?
Between 2015 and 2025, the population of Rüthi (SG) went from 2,256 to 2,667, a change of +18.2%.
Where is Rüthi (SG)?
Rüthi (SG) is in St. Gallen. It belongs to Wahlkreis Rheintal (district). Latitude 47.296, longitude 9.537.
Share of jobs in industry and construction: what is the figure for Rüthi (SG)?
In Rüthi (SG), “Share of jobs in industry and construction” stands at 60.7% (2024), ranking 45 of 1,776 municipalities; the national median is 24.2%.
Heat pumps as main heating: what is the figure for Rüthi (SG)?
In Rüthi (SG), “Heat pumps as main heating” stands at 38.4% (2026), ranking 104 of 1,806 municipalities; the national median is 13.7%.
How much electricity does a solar panel produce in Rüthi (SG)?
In Rüthi (SG), a 1 kWp south-facing system tilted at 40° produces about 1,202 kWh a year.
Which municipalities border Rüthi (SG)?
The nearest to Rüthi (SG) are Oberriet (SG) (3.2 km), Sennwald (4.3 km), Eichberg (5.3 km), Schwende-Rüte (8.6 km), Altstätten (9.2 km).