Grengiols: population and statistics
Grengiols has a population of 409 (2025) across 58.5 km², or 7.0 people per km². It ranks 1,890 of 2,115 municipalities by population. Its population is falling: −5.1% between 2015 and 2025.
- 409 residents
- 58.5 km²
- 7 people/km²
- 1,182 m
Key points
Among the 122 municipalities in Valais, Grengiols ranks No. 100 by population.
A 1 kWp solar panel tilted at 26° generates about 1,068 kWh a year here.
Grengiols in numbers
Where is Grengiols?
Population of Grengiols over time
Grengiols had 431 residents in 2015 and 409 in 2025.
| Year | Population |
|---|---|
| 2020 | 431 |
| 2021 | 415 |
| 2022 | 419 |
| 2023 | 424 |
| 2024 | 417 |
| 2025 | 409 |
Did you know?
- “Photovoltaic installations”: lower than in 94% of municipalities.
- Its area is roughly equal to 8,196 football pitches.
- Its population density is 33.2 times lower than the national average.
- The nearest municipality is Lax, 2.3 km away.
- The nearest more populous municipality is Mörel-Filet (743 residents), 4.1 km away.
- A 4 kWp rooftop solar system here would generate about 4,272 kWh a year, roughly what an average household uses.
All indicators for Grengiols
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 | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 23.2% | 21.2% | 20.7% |
Housing
| Indicator | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 502 | 284,329 | 4,927,050 | ranked 1,509 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 53.3% | 15.6% | 23.3% | ||
| Dwellings in buildings built since 2001 (2026) | 4.6% | 28.0% | 25.3% | ||
| Share of single-family houses among residential buildings (2026) | 68.5% | 63.4% | 69.5% |
Energy
| Indicator | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 23.3% | 49.8% | 53.5% | ||
| Heat pumps as main heating (2026) | 3.0% | 12.0% | 13.7% | ||
| Wood heating systems (2026) | 53.5% | 13.0% | 12.4% | ||
| District heating (2026) | 0.3% | 3.4% | 1.4% | ||
| Photovoltaic installations (2026) | 16 | 18,204 | 329,600 | ranked 1,968 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 606.6 kW | 1,004 kW | 1,134 kW | ||
| Rooftop solar electricity potential (2026) | 10.4 GWh/year | 3,880 GWh/year | 64,783 GWh/year | ranked 1,528 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 25,330 kWh/inh. | 10,316 kWh/inh. | 9,356 kWh/inh. |
Economy
| Indicator | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 50 | 32,476 | 728,011 | ranked 1,694 of 2,112 | |
| Entities listed in the commercial register (2026) | 35 | 35,035 | 762,757 | ranked 1,743 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 85.6 | 93.1 | 64.9 | ||
| Share of limited companies (AG, GmbH) among registered entities (2026) | 48.6% | 72.6% | 65.7% | ||
| Share of sole proprietorships among registered entities (2026) | 28.6% | 20.9% | 29.0% |
Employment
| Indicator | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 155 | 202,116 | 5,679,518 | ranked 1,735 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 379.0 | 537.6 | 362.9 | ||
| Share of jobs in services (2024) | 43.9% | 71.1% | 63.6% | ||
| Share of jobs in industry and construction (2024) | 18.7% | 21.0% | 24.2% |
Society
| Indicator | Grengiols | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 6.4% | 26.5% | 18.9% |
Sunshine and temperatures: Grengiols
Frequently asked questions
What is the population of Grengiols?
Grengiols has 409 residents (2025), ranking 1,890 of 2,115 municipalities.
How big is Grengiols?
Grengiols covers 58.5 km², with a density of 7 people per km².
Is the population of Grengiols growing?
Between 2015 and 2025, the population of Grengiols went from 431 to 409, a change of −5.1%.
Where is Grengiols?
Grengiols is in Valais. It belongs to Bezirk Raron (district). Latitude 46.367, longitude 8.100.
Photovoltaic installations: what is the figure for Grengiols?
In Grengiols, “Photovoltaic installations” stands at 16 (2026), ranking 1,968 of 2,108 municipalities; the national median is 103.
Entities listed in the commercial register: what is the figure for Grengiols?
In Grengiols, “Entities listed in the commercial register” stands at 35 (2026), ranking 1,743 of 2,115 municipalities; the national median is 118.
How much electricity does a solar panel produce in Grengiols?
In Grengiols, a 1 kWp south-facing system tilted at 26° produces about 1,068 kWh a year.
Which municipalities border Grengiols?
The nearest to Grengiols are Lax (2.3 km), Bettmeralp (2.5 km), Bister (2.6 km), Mörel-Filet (4.1 km), Fiesch (4.5 km).