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).

Switzerland · Canton SG · Wahlkreis Rheintal

Widnau

9435–9443

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN · swissTLM3D · swissTLMRegio

Demographics

BFS · 2025

Women

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%

Population change 2025: +76 (+0.7%) · 98 births · 72 deaths · net migration +56

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

Vote results for Widnau

BFS

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 Wahlkreis Rheintal: 21.5% Yes

23.8% YesNo 76.2%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Wahlkreis Rheintal: 40.2% Yes

38.8% YesNo 61.2%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Wahlkreis Rheintal: 62.4% Yes

60.7% YesNo 39.3%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Wahlkreis Rheintal: 61.5% Yes

57.7% YesNo 42.3%

14.06.2026Gesetz über Beiträge für familien- und schulergänzende KinderbetreuungCantonal SG● Accepted · 57.8% YesDistrict Wahlkreis Rheintal: 55.6% Yes

61.3% YesNo 38.7%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Wahlkreis Rheintal: 38.4% Yes

40.1% YesNo 59.9%

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 Wahlkreis Rheintal: 17.3% Yes

17.4% YesNo 82.6%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Wahlkreis Rheintal: 47.9% Yes

47.8% YesNo 52.2%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Wahlkreis Rheintal: 44.5% Yes

42.4% YesNo 57.6%

08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Wahlkreis Rheintal: 71.6% Yes

72.3% YesNo 27.7%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023

SVP40.7% · strongest party

SVP40.7%

Mitte20.9%

FDP13.2%

SP8.7%

GRÜNE6.9%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026

Taxes 2026

ESTV

Municipal tax multiplier76%

Cantonal tax multiplier105%

76%SG range 61%155%

Tax rank 5 of 75 in canton St. Gallen

Tax 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

Income tax as % of gross income

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 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual 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 m

Highest 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

Solar potential

BFE

Roof potential

75.8 GWh/yr

Roofs + façades

99.4 GWh/yr

≈ households powered

16'800

Per inhabitant

7'227 kWh/yr

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 24.09.2026

Electricity

ElCom · 2027

Tariff H4

25.67 Rp./kWh

Energy

12.28 Rp./kWh

Grid usage

7.54 Rp./kWh

Levies + grid surcharge

4.25 Rp./kWh

25.67 Rp./kWh10.5645.88

Canton median 30.11 Rp./kWhSwiss median 26.53 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.

2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026

Health-insurance premiums

BAG · 2024

Premium regionRegion 3

Standard model, deductible 300516 CHF/mo

Ø premium in canton St. Gallen377 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Widnau →Canton St. Gallen →Premiums explained →

Premiums are set per canton and premium region. This area lies in premium region 3 of canton St. Gallen. Shown is the average adult premium paid across the whole canton St. Gallen (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 · ARE

Vacancy rate

0.69 %

Second homes

7.3 %

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 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 · 2024

Jobs

5'280

Workplaces

690

Services share

67.9 %

Jobs by sector: Primary 12 (0.2%) · Secondary 1'684 (31.9%) · Tertiary 3'584 (67.9%)

STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025

Farms

Organic share

0 %

Farmland

125 ha

Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM

Major centrePT 135 min · Car 87 min

AgglomerationPT 30 min · Car 15 min

Remoteness 8/75 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0

BFS municipality number3238

Websitewidnau.ch ↗

DistrictWahlkreis Rheintal

Wikidata · continuously updated, retrieved 24.09.2026

Where Widnau ranks

Largest municipalities10'485 #9 SG · #170 CH Growing municipalities0.7% #33 SG · #952 CH Shrinking municipalities0.7% #42 SG · #1156 CH Jobs per resident0.5 #28 SG · #534 CH Families & children20.4% #49 SG · #1011 CH Age structure17.6% #63 SG · #1696 CH Women share49.3% #42 SG · #1383 CH Foreign residents29.5% #20 SG · #329 CH Population density2'485/km² #2 SG · #44 CH Tax burden11'711 #5 SG · #256 CH Taxes76% #5 SG Warmest municipalities10.1 °C #20 SG · #414 CH Sunniest municipalities41.7% #38 SG · #1183 CH Rainiest municipalities1'178 mm #46 SG · #748 CH Voter turnout51.7% #65 SG · #1623 CH Against Switzerland18.6% #40 SG · #618 CH Aligned with Switzerland81.4% #36 SG · #829 CH SVP strongholds40.7% #29 SG · #629 CH SP strongholds8.7% #45 SG · #1630 CH Centre strongholds20.9% #36 SG · #487 CH FDP strongholds13.2% #43 SG · #1011 CH GLP strongholds5.1% #33 SG · #1167 CH Green strongholds6.9% #34 SG · #1123 CH Largest by area4.2 km² #70 SG · #1681 CH Highest municipalities405 m #73 SG · #1868 CH Second homes7.3% #71 SG · #1767 CH Organic farming0% #69 SG · #1822 CH Best-connected municipalities135 min #68 SG · #2006 CH Remotest municipalities135 min #8 SG · #103 CH Highest peaks414 m #75 SG · #2082 CH Highest-lying municipalities405 m #75 SG · #1963 CH Greatest vertical range13 m #75 SG · #2101 CH Steepest municipalities0.9° #75 SG · #2081 CH Solar potential76 GWh #13 SG · #161 CH Solar potential per capita7'227 kWh #53 SG · #1634 CH Cheapest electricity25.67 Rp./kWh #4 SG · #731 CH Most expensive electricity25.67 Rp./kWh #71 SG · #1376 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Heerbrugg9435 Widnau9443

Nearby municipalities

swisstopo

Frequently asked questions

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

OpenStreetMap

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