Demographics
BFS · 2025Women
1'491 48.4%
Men
1'589 51.6%
Children & youth (0–19)
623 20.2%
Swiss citizens
2'442 79.3%
Foreign residents
638 20.7%
Population density
147 pop./km²
0–19 · 623 · 20.2%20–64 · 1'891 · 61.4%65+ · 566 · 18.4%
Foreign residents 20.7%0%64.0%
Population change 2025: +56 (+1.9%) · 28 births · 25 deaths · net migration +53
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026
27.09.2026Popular Initiative 'For food security – through increased sustainable domestic production, more plant-based food and clean drinking water (Food Initiative)'Federal● Rejected · 27.5% YesDistrict District de Monthey: 27.2% Yes
21.8% YesNo 78.2%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict District de Monthey: 35.1% Yes
34.4% YesNo 65.6%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict District de Monthey: 58.8% Yes
61.6% YesNo 38.4%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict District de Monthey: 50.0% Yes
51.7% YesNo 48.3%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict District de Monthey: 52.4% Yes
52.5% YesNo 47.5%
08.03.2026Popular Initiative ‘For a fair energy and climate policy: Investing for prosperity, jobs and the environment (Climate Fund Initiative)’Federal● Rejected · 29.3% YesDistrict District de Monthey: 21.9% Yes
19.3% YesNo 80.7%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict District de Monthey: 45.9% Yes
43.2% YesNo 56.8%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict District de Monthey: 55.0% Yes
54.2% YesNo 45.8%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict District de Monthey: 61.2% Yes
63.6% YesNo 36.4%
08.03.2026Popular Initiative 'Yes to an independent and free Swiss currency with coins or banknotes (Cash is freedom)'Federal● Rejected · 45.6% YesDistrict District de Monthey: 65.4% Yes
63.1% YesNo 36.9%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP31.4% · strongest party
SVP31.4%
Mitte27.0%
FDP18.2%
SP13.0%
GRÜNE7.8%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier110%
Cantonal tax multiplier100%
110%VS range 100%145%
Tax rank 32 of 122 in canton ValaisTax burden
Single, 100'000 CHF gross income
14'886 CHF(14.9%)
Rank 38 of 122 in the canton · 984 of 2110 in Switzerland
Median canton 15'413 CHF · median Switzerland 15'290 CHF
Cheapest Bister VS 13'690 CHF · most expensive Grächen 17'302 CHF
100'000 CHF:14'886 CHF(~14.9%)
VionnazCanton range ValaisSwitzerland median
Show data table
| Gross income | Vionnaz | Valais | Switzerland median |
|---|---|---|---|
| 40'000 | 4.7% | 4.2–5.8% | 5.4% |
| 50'000 | 8.4% | 7.5–10.3% | 7.8% |
| 60'000 | 9.9% | 8.8–12% | 10.5% |
| 70'000 | 11.3% | 10.2–13.5% | 11.9% |
| 80'000 | 12.6% | 11.4–14.9% | 13.1% |
| 90'000 | 13.6% | 12.4–16% | 14.1% |
| 100'000 | 14.9% | 13.7–17.3% | 15.3% |
| 110'000 | 16% | 14.8–18.5% | 16.3% |
| 120'000 | 17.1% | 15.9–19.6% | 17.2% |
| 130'000 | 18.2% | 17–20.8% | 18.1% |
| 140'000 | 19.3% | 18.1–22% | 19% |
| 150'000 | 20.4% | 19.1–23% | 19.7% |
| 175'000 | 23% | 21.8–25.7% | 21.6% |
| 200'000 | 24.9% | 23.9–27.7% | 23.2% |
| 225'000 | 26.1% | 25.1–28.9% | 24.6% |
| 250'000 | 27.1% | 26–30% | 25.8% |
| 275'000 | 27.8% | 26.8–30.8% | 26.8% |
| 300'000 | 28.5% | 27.4–31.6% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20209.1 °C
Precipitation 1991–20201'180 mm
9.1 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
1'994 m
Mean elevation
1'111 m
Relief
1'616 m
Mean slope
24.7°
Flat share
14.0%
South-facing
12.7%
Above 2000 m
0.0%
Relief 1'616 m0 m3'847 m
Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.
swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026
Roof potential
23.3 GWh/yr
Roofs + façades
30.8 GWh/yr
≈ households powered
5'200
Per inhabitant
7'575 kWh/yr
23 GWh/yr01'133 GWh/yr
BFE solar factsheet ↗Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).
Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026
Electricity
ElCom · 2027Tariff H4
28.26 Rp./kWh
Energy
13.01 Rp./kWh
Grid usage
10.18 Rp./kWh
Levies + grid surcharge
3.3 Rp./kWh
28.26 Rp./kWh10.5645.88
Canton median 26.56 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Romande Energie SA
ElCom tariff comparison ↗How this is measured
Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.
2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026
Health-insurance premiums
BAG · 2024Premium regionRegion 1
Standard model, deductible 300583 CHF/mo
Ø premium in canton Valais391 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo
Premiums are set per canton and premium region. This area lies in premium region 1 of canton Valais. Shown is the average adult premium paid across the whole canton Valais (2024, BAG) — a region-specific average is not available in the cantonal data.
2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026
Housing
BFS · AREVacancy rate
0.69 %
Second homes
35.3 %
Avg. rooms
3.1
Dwellings
2'175
Built before 19469.6%
Built since 200123.8%
Second Homes Act: no new second-home permits (official building restriction in force).
0.69 %0 %12 %
Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.
Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026
Economy
BFS · 2024Jobs
970
Workplaces
204
Services share
39.7 %
Jobs by sector: Primary 40 (4.1%) · Secondary 545 (56.2%) · Tertiary 385 (39.7%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
9
Organic share
22.2 %
Farmland
280 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026
Accessibility
ARE · NPVMNational Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026
Municipality
Wikidata · CC0Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities3'080 #34 VS · #710 CHGrowing municipalities1.9% #33 VS · #400 CHShrinking municipalities1.9% #90 VS · #1712 CHJobs per resident0.31 #67 VS · #1261 CHFamilies & children20.2% #28 VS · #1089 CHAge structure18.4% #106 VS · #1582 CHWomen share48.4% #89 VS · #1764 CHForeign residents20.7% #44 VS · #797 CHPopulation density147/km² #30 VS · #1236 CHTax burden14'886 #39 VS · #985 CHTaxes110% #32 VSWarmest municipalities9.1 °C #27 VS · #1333 CHSunniest municipalities50.7% #106 VS · #218 CHRainiest municipalities1'180 mm #18 VS · #742 CHVoter turnout50.2% #90 VS · #1767 CHAgainst Switzerland17.8% #49 VS · #669 CHAligned with Switzerland82.2% #24 VS · #802 CHSVP strongholds31.4% #29 VS · #1190 CHSP strongholds13% #44 VS · #1168 CHCentre strongholds27% #99 VS · #304 CHFDP strongholds18.2% #30 VS · #579 CHGLP strongholds2.1% #36 VS · #1750 CHGreen strongholds7.8% #41 VS · #922 CHLargest by area21 km² #69 VS · #461 CHHighest municipalities395 m #116 VS · #1918 CHSecond homes35.3% #75 VS · #231 CHOrganic farming22.2% #45 VS · #559 CHBest-connected municipalities82 min #13 VS · #1402 CHRemotest municipalities82 min #110 VS · #733 CHHighest peaks1'994 m #109 VS · #359 CHHighest-lying municipalities1'111 m #103 VS · #343 CHGreatest vertical range1'616 m #107 VS · #307 CHSteepest municipalities24.7° #90 VS · #272 CHSolar potential23 GWh #50 VS · #898 CHSolar potential per capita7'575 kWh #109 VS · #1557 CHCheapest electricity28.26 Rp./kWh #116 VS · #1383 CHMost expensive electricity28.26 Rp./kWh #11 VS · #728 CH
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopo- What is the postal code of Vionnaz?
- Vionnaz has 2 postal codes: 1895, 1899.
- What is the tax rate in Vionnaz?
- The municipal tax multiplier of Vionnaz is 110% (2026); canton VS levies 100%.
- How much tax do you pay in Vionnaz?
- A single person without children pays about 14'886 CHF income tax in Vionnaz on 100'000 CHF gross income (federal, cantonal, municipal), rank 38 of 122 in canton VS. Source: ESTV (2026).
- How many residents does Vionnaz have?
- Vionnaz has 3'080 residents (2025).
- How many foreign residents live in Vionnaz?
- Vionnaz has 638 foreign residents, a share of 20.71% (2025).
Map
OpenStreetMapVionnaz compared with
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