Vionnaz: population and statistics
Vionnaz has a population of 3,080 (2025) across 20.9 km², or 147 people per km². It ranks 711 of 2,115 municipalities by population. Its population is growing: +21.7% between 2015 and 2025.
- 3,080 residents
- 20.9 km²
- 147 people/km²
- 386 m
Key points
Among the 122 municipalities in Valais, Vionnaz ranks No. 34 by population.
Share of jobs in industry and construction: 56.2% in Vionnaz, compared with an average of 21.0% in Valais and 22.0% nationally.
Dwellings in buildings built before 1946: 9.6% in Vionnaz, compared with an average of 15.6% in Valais and 22.4% nationally.
A 1 kWp solar panel tilted at 41° generates about 1,323 kWh a year here.
Vionnaz in numbers
Where is Vionnaz?
Population of Vionnaz over time
Vionnaz had 2,530 residents in 2015 and 3,080 in 2025.
| Year | Population |
|---|---|
| 2020 | 2,753 |
| 2021 | 2,805 |
| 2022 | 2,902 |
| 2023 | 2,934 |
| 2024 | 3,024 |
| 2025 | 3,080 |
Did you know?
- “Share of jobs in industry and construction”: higher than in 96% of municipalities.
- “Dwellings in buildings built before 1946”: lower than in 90% of municipalities.
- “Entities in the commercial register per 1,000 inhabitants”: higher than in 90% of municipalities.
- Its area is roughly equal to 2,934 football pitches.
- The nearest more populous municipality is Vouvry (4,936 residents), 2.3 km away.
- A 4 kWp rooftop solar system here would generate about 5,292 kWh a year, roughly what an average household uses.
All indicators for Vionnaz
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 | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 18.4% | 21.2% | 20.7% | ranked 1,328 of 1,811 |
Housing
| Indicator | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,202 | 284,329 | 4,927,050 | ranked 550 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 9.6% | 15.6% | 23.3% | ranked 1,629 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 24.5% | 28.0% | 25.3% | ranked 951 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 75.2% | 63.4% | 69.5% | ranked 523 of 1,806 |
Energy
| Indicator | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 38.0% | 49.8% | 53.5% | ranked 1,423 of 1,806 | |
| Heat pumps as main heating (2026) | 13.8% | 12.0% | 13.7% | ranked 900 of 1,806 | |
| Wood heating systems (2026) | 11.7% | 13.0% | 12.4% | ranked 947 of 1,806 | |
| District heating (2026) | 4.8% | 3.4% | 1.4% | ranked 474 of 1,806 | |
| Photovoltaic installations (2026) | 211 | 18,204 | 329,600 | ranked 480 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 844.6 kW | 1,004 kW | 1,134 kW | ranked 1,313 of 1,806 | |
| Rooftop solar electricity potential (2026) | 23.3 GWh/year | 3,880 GWh/year | 64,783 GWh/year | ranked 899 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,575 kWh/inh. | 10,316 kWh/inh. | 9,356 kWh/inh. | ranked 1,267 of 1,810 |
Economy
| Indicator | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 204 | 32,476 | 728,011 | ranked 751 of 2,112 | |
| Entities listed in the commercial register (2026) | 321 | 35,035 | 762,757 | ranked 474 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 104.2 | 93.1 | 64.9 | ranked 173 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 70.1% | 72.6% | 65.7% | ranked 514 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 21.5% | 20.9% | 29.0% | ranked 1,514 of 1,808 |
Employment
| Indicator | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 970 | 202,116 | 5,679,518 | ranked 841 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 314.9 | 537.6 | 362.9 | ranked 1,092 of 1,810 | |
| Share of jobs in services (2024) | 39.7% | 71.1% | 63.6% | ranked 1,608 of 1,804 | |
| Share of jobs in industry and construction (2024) | 56.2% | 21.0% | 24.2% | ranked 75 of 1,776 |
Society
| Indicator | Vionnaz | Valais | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 20.7% | 26.5% | 18.9% | ranked 756 of 1,811 |
Sunshine and temperatures: Vionnaz
Frequently asked questions
What is the population of Vionnaz?
Vionnaz has 3,080 residents (2025), ranking 711 of 2,115 municipalities.
How big is Vionnaz?
Vionnaz covers 20.9 km², with a density of 147 people per km².
Is the population of Vionnaz growing?
Between 2015 and 2025, the population of Vionnaz went from 2,530 to 3,080, a change of +21.7%.
Where is Vionnaz?
Vionnaz is in Valais. It belongs to District de Monthey (district). Latitude 46.317, longitude 6.900.
Share of jobs in industry and construction: what is the figure for Vionnaz?
In Vionnaz, “Share of jobs in industry and construction” stands at 56.2% (2024), ranking 75 of 1,776 municipalities; the national median is 24.2%.
Dwellings in buildings built before 1946: what is the figure for Vionnaz?
In Vionnaz, “Dwellings in buildings built before 1946” stands at 9.6% (2026), ranking 1,629 of 1,806 municipalities; the national median is 23.3%.
How much electricity does a solar panel produce in Vionnaz?
In Vionnaz, a 1 kWp south-facing system tilted at 41° produces about 1,323 kWh a year.
Which municipalities border Vionnaz?
The nearest to Vionnaz are Vouvry (2.3 km), Chessel (3.7 km), Roche (VD) (3.9 km), Yvorne (4.3 km), Aigle (5.0 km).