What is the postal code of Niederhelfenschwil?

Niederhelfenschwil has 6 postal codes: 9223, 9245, 9524, 9525, 9526, 9527.

What is the tax rate in Niederhelfenschwil?

The municipal tax multiplier of Niederhelfenschwil is 104% (2026); canton SG levies 105%.

How much tax do you pay in Niederhelfenschwil?

A single person without children pays about 13'259 CHF income tax in Niederhelfenschwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 22 of 75 in canton SG. Source: ESTV (2026).

How many residents does Niederhelfenschwil have?

Niederhelfenschwil has 3'309 residents (2025).

How many foreign residents live in Niederhelfenschwil?

Niederhelfenschwil has 309 foreign residents, a share of 9.34% (2025).

Niederhelfenschwil (SG): Postal Codes 9223–9527, Tax Rate & Population

Demographics

BFS · 2025

Women

1'633 49.4%

Men

1'676 50.6%

Children & youth (0–19)

825 24.9%

Swiss citizens

3'000 90.7%

Foreign residents

309 9.3%

Population density

202 pop./km²

0–19 · 825 · 24.9%20–64 · 1'933 · 58.4%65+ · 551 · 16.7%

Foreign residents 9.3%0%64.0%

STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026 · swisstopo, retrieved 24.08.2026

Vote results for Niederhelfenschwil

BFS

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)Federal● Accepted · 52.5% Yes

66.2% YesNo 33.8%

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»Federal● Rejected · 45.2% Yes

62.6% YesNo 37.4%

14.06.2026Gesetz über Beiträge für familien- und schulergänzende KinderbetreuungCantonal SG● Accepted · 57.8% Yes

48.1% YesNo 51.9%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

32.4% YesNo 67.6%

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»Federal● Rejected · 29.3% Yes

14.8% YesNo 85.2%

08.03.2026Volksinitiative «200 Franken sind genug! (SRG-Initiative)»Federal● Rejected · 38.1% Yes

45.6% YesNo 54.4%

08.03.2026Bargeldinitiative und Gegenvorschlag: StichfrageFederal● Rejected · 37.4% Yes

37.7% YesNo 62.3%

08.03.2026Bundesbeschluss über die schweizerische Währung und die Bargeldversorgung (Gegenvorschlag zur Bargeldinitiative)Federal● Accepted · 73.4% Yes

73.6% YesNo 26.4%

08.03.2026Volksinitiative «Ja zu einer unabhängigen, freien Schweizer Währung mit Münzen oder Banknoten (Bargeld ist Freiheit)»Federal● Rejected · 45.6% Yes

43.5% YesNo 56.5%

08.03.2026Kantonsratsbeschluss über den Bau der «Kantonsstrasse zum See» mit Kostenbeteiligung am «Anschluss Witen mit Zubringer»Cantonal SG● Accepted · 54.0% Yes

53.1% YesNo 46.9%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 31.08.2026

Politics

National Council election 2023

SVP41.4% · strongest party

SVP41.4%

Mitte21.5%

FDP16.2%

GRÜNE5.3%

SP5.0%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 31.08.2026

Taxes 2026

ESTV

Municipal tax multiplier104%

Cantonal tax multiplier105%

104%SG range 61%155%

Tax rank 23 of 75 in canton St. Gallen

Tax burden

Single, 100'000 CHF gross income

13'259 CHF(13.3%)

Rank 22 of 75 in the canton · 601 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:13'259 CHF(~13.3%)

NiederhelfenschwilCanton range St. GallenSwitzerland median

Show data table

Gross income	Niederhelfenschwil	St. Gallen	Switzerland median
40'000	5.9%	4.8–7.3%	5.4%
50'000	7.6%	6.1–9.3%	7.8%
60'000	9.1%	7.4–11.2%	10.5%
70'000	10.2%	8.3–12.5%	11.9%
80'000	11.3%	9.2–13.8%	13.1%
90'000	12.2%	10–14.9%	14.1%
100'000	13.3%	10.9–16.1%	15.3%
110'000	14.1%	11.7–17.1%	16.3%
120'000	14.9%	12.3–18%	17.2%
130'000	15.6%	12.9–18.7%	18.1%
140'000	16.3%	13.6–19.5%	19%
150'000	16.9%	14.1–20.2%	19.7%
175'000	18.3%	15.4–21.8%	21.6%
200'000	19.5%	16.5–23.1%	23.2%
225'000	20.6%	17.5–24.2%	24.6%
250'000	21.5%	18.4–25.2%	25.8%
275'000	22.3%	19.1–26.1%	26.8%
300'000	22.9%	19.7–26.7%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 31.08.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–20209 °C

Precipitation 1991–20201'119 mm

9 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

690 m

Mean elevation

566 m

Relief

217 m

Mean slope

5.5°

Flat share

61.7%

South-facing

14.0%

Above 2000 m

0.0%

Relief 217 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

38.2 GWh/yr

Roofs + façades

50.7 GWh/yr

≈ households powered

8'500

38 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 · 2026

Tariff H4

39.83 Rp./kWh

Energy

19.3 Rp./kWh

Grid usage

14.83 Rp./kWh

Levies + grid surcharge

3.3 Rp./kWh

39.83 Rp./kWh9.6443.61

Canton median 29.8 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator Politische Gemeinde Niederhelfenschwil, 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

BFS

Vacancy rate

0.36 %

Avg. rooms

4.6

Dwellings

1'374

Built before 194619.8%

Built since 200134.5%

0.36 %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 · NPVM

Major centrePT 96 min · Car 60 min

AgglomerationPT 26 min · Car 16 min

Remoteness 44/75 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 28.08.2026

Municipality

Wikidata · CC0

Websiteniederhelfenschwil.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

31

Largest municipalities3'309 #55 SG · #669 CH Families & children24.9% #6 SG · #84 CH Age structure16.7% #71 SG · #1817 CH Women share49.4% #40 SG · #1332 CH Foreign residents9.3% #72 SG · #1763 CH Population density202/km² #47 SG · #1021 CH Tax burden13'259 #23 SG · #602 CH Taxes104% #23 SG Warmest municipalities9 °C #46 SG · #1379 CH Sunniest municipalities40.2% #58 SG · #1751 CH Rainiest municipalities1'119 mm #60 SG · #988 CH Voter turnout60.7% #8 SG · #420 CH Against Switzerland21% #37 SG · #477 CH Aligned with Switzerland79% #40 SG · #968 CH SVP strongholds41.4% #26 SG · #597 CH SP strongholds5% #72 SG · #1932 CH Centre strongholds21.5% #32 SG · #465 CH FDP strongholds16.2% #18 SG · #722 CH GLP strongholds4.9% #42 SG · #1220 CH Green strongholds5.3% #57 SG · #1492 CH Largest by area16.4 km² #35 SG · #585 CH Highest municipalities580 m #34 SG · #889 CH Remotest municipalities96 min #44 SG · #451 CH Best-connected municipalities96 min #33 SG · #1656 CH Highest peaks690 m #54 SG · #1236 CH Highest-lying municipalities566 m #49 SG · #1146 CH Greatest vertical range217 m #55 SG · #1283 CH Steepest municipalities5.5° #56 SG · #1473 CH Solar potential38 GWh #45 SG · #499 CH Cheapest electricity39.83 Rp./kWh #75 SG · #2103 CH Most expensive electricity39.83 Rp./kWh #1 SG · #4 CH

Postal codes (6)

swisstopo

Localities

swisstopo · 7

Lenggenwil9525 Niederhelfenschwil9527 Oberbüren9245 Schweizersholz9223 Sonnental9245 Zuckenriet9526 Zuzwil SG9524

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Niederhelfenschwil?: Niederhelfenschwil has 6 postal codes: 9223, 9245, 9524, 9525, 9526, 9527.
What is the tax rate in Niederhelfenschwil?: The municipal tax multiplier of Niederhelfenschwil is 104% (2026); canton SG levies 105%.
How much tax do you pay in Niederhelfenschwil?: A single person without children pays about 13'259 CHF income tax in Niederhelfenschwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 22 of 75 in canton SG. Source: ESTV (2026).
How many residents does Niederhelfenschwil have?: Niederhelfenschwil has 3'309 residents (2025).
How many foreign residents live in Niederhelfenschwil?: Niederhelfenschwil has 309 foreign residents, a share of 9.34% (2025).

Map

OpenStreetMap

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