What is the postal code of Diepoldsau?

Diepoldsau has 3 postal codes: 9436, 9443, 9444.

What is the tax rate in Diepoldsau?

The municipal tax multiplier of Diepoldsau is 85% (2026); canton SG levies 105%.

How much tax do you pay in Diepoldsau?

A single person without children pays about 12'209 CHF income tax in Diepoldsau on 100'000 CHF gross income (federal, cantonal, municipal), rank 8 of 75 in canton SG. Source: ESTV (2026).

How many residents does Diepoldsau have?

Diepoldsau has 6'933 residents (2025).

How many foreign residents live in Diepoldsau?

Diepoldsau has 1'873 foreign residents, a share of 27.02% (2025).

Switzerland · Canton SG · Wahlkreis Rheintal

Diepoldsau

9436–9444

SG CANTON9436 9443 9444

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

Demographics

BFS · 2025

Women

3'404 49.1%

Men

3'529 50.9%

Children & youth (0–19)

1'462 21.1%

Swiss citizens

5'060 73.0%

Foreign residents

1'873 27.0%

Population density

616 pop./km²

0–19 · 1'462 · 21.1%20–64 · 4'176 · 60.2%65+ · 1'295 · 18.7%

Foreign residents 27.0%0%64.0%

Population change 2025: −6 (−0.1%) · 59 births · 53 deaths · net migration −11

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 Diepoldsau

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

18.0% YesNo 82.0%

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

35.3% YesNo 64.7%

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

63.1% YesNo 37.0%

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

59.8% YesNo 40.2%

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

55.6% YesNo 44.4%

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

43.8% YesNo 56.2%

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

17.1% YesNo 82.9%

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

45.3% YesNo 54.7%

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

41.3% YesNo 58.7%

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

73.7% YesNo 26.3%

All federal votes →

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

Politics

National Council election 2023

SVP39.4% · strongest party

SVP39.4%

Mitte24.5%

FDP15.0%

SP6.9%

GRÜNE5.4%

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

Taxes 2026

ESTV

Municipal tax multiplier85%

Cantonal tax multiplier105%

85%SG range 61%155%

Tax rank 8 of 75 in canton St. Gallen

Tax burden

Single, 100'000 CHF gross income

12'209 CHF(12.2%)

Rank 8 of 75 in the canton · 339 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:12'209 CHF(~12.2%)

DiepoldsauCanton range St. GallenSwitzerland median

Show data table

Gross income	Diepoldsau	St. Gallen	Switzerland median
40'000	5.4%	4.8–7.3%	5.4%
50'000	6.9%	6.1–9.3%	7.8%
60'000	8.3%	7.4–11.2%	10.5%
70'000	9.4%	8.3–12.5%	11.9%
80'000	10.4%	9.2–13.8%	13.1%
90'000	11.2%	10–14.9%	14.1%
100'000	12.2%	10.9–16.1%	15.3%
110'000	13.1%	11.7–17.1%	16.3%
120'000	13.8%	12.3–18%	17.2%
130'000	14.4%	12.9–18.7%	18.1%
140'000	15.1%	13.6–19.5%	19%
150'000	15.7%	14.1–20.2%	19.7%
175'000	17%	15.4–21.8%	21.6%
200'000	18.2%	16.5–23.1%	23.2%
225'000	19.2%	17.5–24.2%	24.6%
250'000	20.1%	18.4–25.2%	25.8%
275'000	20.9%	19.1–26.1%	26.8%
300'000	21.5%	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 1991–202010.4 °C

Precipitation 1991–20201'190 mm

10.4 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

421 m

Mean elevation

408 m

Relief

19 m

Mean slope

1.1°

Flat share

98.1%

South-facing

0.8%

Above 2000 m

0.0%

Relief 19 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

63 GWh/yr

Roofs + façades

80.7 GWh/yr

≈ households powered

14'000

Per inhabitant

9'084 kWh/yr

63 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

31.48 Rp./kWh

Energy

12.6 Rp./kWh

Grid usage

13.85 Rp./kWh

Levies + grid surcharge

3.3 Rp./kWh

31.48 Rp./kWh10.5645.88

Canton median 30.11 Rp./kWhSwiss median 26.53 Rp./kWh

Network operator Politische Gemeinde Diepoldsau, Elektrizitätsversorgung

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 Diepoldsau →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

0.62 %

Second homes

8 %

Avg. rooms

4.2

Dwellings

3'054

Built before 194614.3%

Built since 200137.5%

0.62 %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

3'721

Workplaces

500

Services share

50.4 %

Jobs by sector: Primary 230 (6.2%) · Secondary 1'616 (43.4%) · Tertiary 1'875 (50.4%)

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

Agriculture

BFS · 2025

Farms

Organic share

4 %

Farmland

875 ha

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

Accessibility

ARE · NPVM

Major centrePT 142 min · Car 84 min

AgglomerationPT 37 min · Car 13 min

Remoteness 4/75 in canton

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

Municipality

Wikidata · CC0

BFS municipality number3234

Websitediepoldsau.ch ↗

DistrictWahlkreis Rheintal

Wikidata · continuously updated, retrieved 24.09.2026

Where Diepoldsau ranks

Largest municipalities6'933 #24 SG · #284 CH Growing municipalities-0.1% #60 SG · #1470 CH Shrinking municipalities-0.1% #16 SG · #634 CH Jobs per resident0.54 #22 SG · #447 CH Families & children21.1% #37 SG · #782 CH Age structure18.7% #50 SG · #1502 CH Women share49.1% #50 SG · #1480 CH Foreign residents27% #26 SG · #448 CH Population density616/km² #27 SG · #415 CH Tax burden12'209 #8 SG · #339 CH Taxes85% #8 SG Warmest municipalities10.4 °C #7 SG · #245 CH Sunniest municipalities42.2% #36 SG · #1096 CH Rainiest municipalities1'190 mm #41 SG · #715 CH Voter turnout52.3% #61 SG · #1555 CH Against Switzerland16.7% #44 SG · #781 CH Aligned with Switzerland83.3% #31 SG · #672 CH SVP strongholds39.4% #32 SG · #693 CH SP strongholds6.9% #56 SG · #1799 CH Centre strongholds24.5% #15 SG · #365 CH FDP strongholds15% #30 SG · #824 CH GLP strongholds4.2% #52 SG · #1365 CH Green strongholds5.4% #54 SG · #1470 CH Largest by area11.3 km² #45 SG · #873 CH Highest municipalities408 m #68 SG · #1854 CH Second homes8% #65 SG · #1619 CH Organic farming4% #60 SG · #1557 CH Best-connected municipalities142 min #71 SG · #2030 CH Remotest municipalities142 min #4 SG · #82 CH Highest peaks421 m #74 SG · #2077 CH Highest-lying municipalities408 m #74 SG · #1954 CH Greatest vertical range19 m #74 SG · #2088 CH Steepest municipalities1.1° #74 SG · #2072 CH Solar potential63 GWh #18 SG · #216 CH Solar potential per capita9'084 kWh #30 SG · #1239 CH Cheapest electricity31.48 Rp./kWh #48 SG · #1967 CH Most expensive electricity31.48 Rp./kWh #27 SG · #140 CH

Postal codes (3)

swisstopo

Localities

swisstopo · 3

Balgach9436 Diepoldsau9444 Widnau9443

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Diepoldsau?: Diepoldsau has 3 postal codes: 9436, 9443, 9444.
What is the tax rate in Diepoldsau?: The municipal tax multiplier of Diepoldsau is 85% (2026); canton SG levies 105%.
How much tax do you pay in Diepoldsau?: A single person without children pays about 12'209 CHF income tax in Diepoldsau on 100'000 CHF gross income (federal, cantonal, municipal), rank 8 of 75 in canton SG. Source: ESTV (2026).
How many residents does Diepoldsau have?: Diepoldsau has 6'933 residents (2025).
How many foreign residents live in Diepoldsau?: Diepoldsau has 1'873 foreign residents, a share of 27.02% (2025).

Map

OpenStreetMap

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