What is the postal code of Holderbank?

Holderbank has 2 postal codes: 4438, 4718.

What is the tax rate in Holderbank?

The municipal tax multiplier of Holderbank is 132% (2026); canton SO levies 104%.

How many residents does Holderbank have?

Holderbank has 753 residents (2023).

Which canton is Holderbank in?

Holderbank is located in canton SO.

Switzerland · Canton SO

Holderbank

4438–4718

SO CANTON4438 4718

Residents

753

Area

7.8 km²

Tax multiplier

132%

Postal codes

Demographics

BFS · 2023

Women

370 49.1%

Men

383 50.9%

Children & youth (0–19)

125 16.6%

Swiss citizens

603 77.4%

Foreign residents

176 22.6%

0–19 · 125 · 16.6%20–64 · 482 · 64.0%65+ · 146 · 19.4%

Foreign residents 22.6%0%61.6%

Source: BFS/OFS · retrieved 24.07.2026

Recent federal votes

BFS · sd-t-17-02

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 59.9%55.9% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 60.1%71.9% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 47.5%46.2% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 47.5%10.5% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SVP44.8% · strongest party

SVP44.8%

Mitte21.8%

FDP14.2%

SP7.0%

Übrige6.1%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier132%

Cantonal tax multiplier104%

132%CH range 25%525%

Tax rank 101 of 104 in canton Solothurn

Source: ESTV · retrieved 20.07.2026

Climate

Wynau · 9.6 km

Annual mean temperature 202510.5 °C

Precipitation 20251'082 mm

10.5 °CCH range -5.5°14°

Source: MeteoSwiss · retrieved 24.07.2026

Municipality

Wikidata · CC0

Websiteholderbank-so.ch ↗

Source: Wikidata · retrieved 20.07.2026

Postal codes (2)

swisstopo

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Holderbank?: Holderbank has 2 postal codes: 4438, 4718.
What is the tax rate in Holderbank?: The municipal tax multiplier of Holderbank is 132% (2026); canton SO levies 104%.
How many residents does Holderbank have?: Holderbank has 753 residents (2023).
Which canton is Holderbank in?: Holderbank is located in canton SO.

Map

OpenStreetMap