Switzerland · Canton SG
Widnau
9435–9443Residents
10'485
Area
4.2 km²
Population density
2'485 pop./km²
Elevation
405 m a.s.l.
Tax multiplier
76%
Postal codes
2
Demographics
BFS · 2025Women
5'173 49.3%
Men
5'312 50.7%
Children & youth (0–19)
2'143 20.4%
Swiss citizens
7'390 70.5%
Foreign residents
3'095 29.5%
Population density
2'485 pop./km²
0–19 · 2'143 · 20.4%20–64 · 6'493 · 61.9%65+ · 1'849 · 17.6%
Foreign residents 29.5%0%64.0%
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026 · swisstopo, retrieved 24.08.2026
14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)Federal● Accepted · 52.5% Yes
60.7% YesNo 39.3%
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»Federal● Rejected · 45.2% Yes
57.7% YesNo 42.3%
14.06.2026Gesetz über Beiträge für familien- und schulergänzende KinderbetreuungCantonal SG● Accepted · 57.8% Yes
61.3% YesNo 38.7%
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»Federal● Rejected · 29.3% Yes
17.4% YesNo 82.6%
08.03.2026Volksinitiative «200 Franken sind genug! (SRG-Initiative)»Federal● Rejected · 38.1% Yes
47.8% YesNo 52.2%
08.03.2026Bargeldinitiative und Gegenvorschlag: StichfrageFederal● Rejected · 37.4% Yes
42.4% YesNo 57.6%
08.03.2026Bundesbeschluss über die schweizerische Währung und die Bargeldversorgung (Gegenvorschlag zur Bargeldinitiative)Federal● Accepted · 73.4% Yes
72.3% YesNo 27.7%
08.03.2026Volksinitiative «Ja zu einer unabhängigen, freien Schweizer Währung mit Münzen oder Banknoten (Bargeld ist Freiheit)»Federal● Rejected · 45.6% Yes
48.8% YesNo 51.2%
08.03.2026Kantonsratsbeschluss über den Bau der «Kantonsstrasse zum See» mit Kostenbeteiligung am «Anschluss Witen mit Zubringer»Cantonal SG● Accepted · 54.0% Yes
66.8% YesNo 33.2%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 31.08.2026
Politics
National Council election 2023SVP40.7% · strongest party
SVP40.7%
Mitte20.9%
FDP13.2%
SP8.7%
GRÜNE6.9%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 31.08.2026
Taxes 2026
ESTVMunicipal tax multiplier76%
Cantonal tax multiplier105%
76%SG range 61%155%
Tax rank 5 of 75 in canton St. GallenTax burden
Single, 100'000 CHF gross income
11'711 CHF(11.7%)
Rank 5 of 75 in the canton · 256 of 2110 in Switzerland
Median canton 13'868 CHF · median Switzerland 15'290 CHF
Cheapest Balgach 10'881 CHF · most expensive Lütisburg 16'080 CHF
100'000 CHF:11'711 CHF(~11.7%)
WidnauCanton range St. GallenSwitzerland median
Show data table
| Gross income | Widnau | St. Gallen | Switzerland median |
|---|---|---|---|
| 40'000 | 5.2% | 4.8–7.3% | 5.4% |
| 50'000 | 6.6% | 6.1–9.3% | 7.8% |
| 60'000 | 8% | 7.4–11.2% | 10.5% |
| 70'000 | 9% | 8.3–12.5% | 11.9% |
| 80'000 | 9.9% | 9.2–13.8% | 13.1% |
| 90'000 | 10.8% | 10–14.9% | 14.1% |
| 100'000 | 11.7% | 10.9–16.1% | 15.3% |
| 110'000 | 12.5% | 11.7–17.1% | 16.3% |
| 120'000 | 13.2% | 12.3–18% | 17.2% |
| 130'000 | 13.9% | 12.9–18.7% | 18.1% |
| 140'000 | 14.5% | 13.6–19.5% | 19% |
| 150'000 | 15.1% | 14.1–20.2% | 19.7% |
| 175'000 | 16.4% | 15.4–21.8% | 21.6% |
| 200'000 | 17.6% | 16.5–23.1% | 23.2% |
| 225'000 | 18.6% | 17.5–24.2% | 24.6% |
| 250'000 | 19.5% | 18.4–25.2% | 25.8% |
| 275'000 | 20.2% | 19.1–26.1% | 26.8% |
| 300'000 | 20.8% | 19.7–26.7% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 31.08.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–202010.1 °C
Precipitation 1991–20201'178 mm
10.1 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
414 m
Mean elevation
405 m
Relief
13 m
Mean slope
0.9°
Flat share
99.7%
South-facing
0.1%
Above 2000 m
0.0%
Relief 13 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
75.8 GWh/yr
Roofs + façades
99.4 GWh/yr
≈ households powered
16'800
76 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 31.08.2026
Electricity
ElCom · 2026Tariff H4
27.14 Rp./kWh
Energy
12.28 Rp./kWh
Grid usage
8.61 Rp./kWh
Levies + grid surcharge
4.25 Rp./kWh
27.14 Rp./kWh9.6443.61
Canton median 29.8 Rp./kWhSwiss median 27.7 Rp./kWh
Network operator Politische Gemeinde Widnau, Elektra / Stromversorgung
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.
2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026
Housing
BFSVacancy rate
0.69 %
Avg. rooms
4.1
Dwellings
4'758
Built before 194610.2%
Built since 200138.0%
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 31.08.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026
Accessibility
ARE · NPVMNational Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 28.08.2026
Municipality
Wikidata · CC0Websitewidnau.ch ↗
Wikidata · continuously updated, retrieved 31.08.2026
Rankings
31Largest municipalities10'485 #9 SG · #170 CHFamilies & children20.4% #49 SG · #1011 CHAge structure17.6% #63 SG · #1696 CHWomen share49.3% #42 SG · #1383 CHForeign residents29.5% #20 SG · #329 CHPopulation density2'485/km² #2 SG · #44 CHTax burden11'711 #5 SG · #256 CHTaxes76% #5 SGWarmest municipalities10.1 °C #20 SG · #414 CHSunniest municipalities41.7% #38 SG · #1183 CHRainiest municipalities1'178 mm #46 SG · #748 CHVoter turnout50.8% #65 SG · #1624 CHAgainst Switzerland19% #40 SG · #617 CHAligned with Switzerland81% #36 SG · #830 CHSVP strongholds40.7% #29 SG · #628 CHSP strongholds8.7% #45 SG · #1624 CHCentre strongholds20.9% #36 SG · #486 CHFDP strongholds13.2% #43 SG · #1008 CHGLP strongholds5.1% #33 SG · #1165 CHGreen strongholds6.9% #34 SG · #1119 CHLargest by area4.2 km² #70 SG · #1681 CHHighest municipalities405 m #73 SG · #1868 CHRemotest municipalities135 min #8 SG · #103 CHBest-connected municipalities135 min #68 SG · #2006 CHHighest peaks414 m #75 SG · #2082 CHHighest-lying municipalities405 m #75 SG · #1963 CHGreatest vertical range13 m #75 SG · #2101 CHSteepest municipalities0.9° #75 SG · #2081 CHSolar potential76 GWh #13 SG · #161 CHCheapest electricity27.14 Rp./kWh #7 SG · #606 CHMost expensive electricity27.14 Rp./kWh #69 SG · #1501 CH
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopo- What is the postal code of Widnau?
- Widnau has 2 postal codes: 9435, 9443.
- What is the tax rate in Widnau?
- The municipal tax multiplier of Widnau is 76% (2026); canton SG levies 105%.
- How much tax do you pay in Widnau?
- A single person without children pays about 11'711 CHF income tax in Widnau on 100'000 CHF gross income (federal, cantonal, municipal), rank 5 of 75 in canton SG. Source: ESTV (2026).
- How many residents does Widnau have?
- Widnau has 10'485 residents (2025).
- How many foreign residents live in Widnau?
- Widnau has 3'095 foreign residents, a share of 29.52% (2025).
Map
OpenStreetMapWidnau compared with
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