What is the postal code of Balsthal?

Balsthal has 2 postal codes: 4710, 4717.

What is the tax rate in Balsthal?

The municipal tax multiplier of Balsthal is 125% (2026); canton SO levies 104%.

How much tax do you pay in Balsthal?

A single person without children pays about 17'010 CHF income tax in Balsthal on 100'000 CHF gross income (federal, cantonal, municipal), rank 64 of 104 in canton SO. Source: ESTV (2026).

How many residents does Balsthal have?

Balsthal has 6'622 residents (2025).

How many foreign residents live in Balsthal?

Balsthal has 2'465 foreign residents, a share of 37.22% (2025).

Switzerland · Canton SO

Balsthal

4710–4717

SO CANTON4710 4717

Residents

6'622

Area

15.7 km²

Population density

422 pop./km²

Elevation

501 m a.s.l.

Terrain up to

1'092 m a.s.l.

Tax multiplier

125%

Postal codes

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

Demographics

BFS · 2025

Women

3'167 47.8%

Men

3'455 52.2%

Children & youth (0–19)

1'399 21.1%

Swiss citizens

4'157 62.8%

Foreign residents

2'465 37.2%

Population density

422 pop./km²

0–19 · 1'399 · 21.1%20–64 · 3'879 · 58.6%65+ · 1'344 · 20.3%

Foreign residents 37.2%0%64.0%

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

Vote results for Balsthal

BFS

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

60.3% YesNo 39.7%

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

60.8% YesNo 39.2%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% Yes

51.5% YesNo 48.5%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% Yes

51.4% YesNo 48.7%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

47.4% YesNo 52.6%

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

17.8% YesNo 82.2%

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

45.1% YesNo 54.9%

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

42.2% YesNo 57.9%

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

69.3% YesNo 30.7%

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

48.0% YesNo 52.0%

All federal votes →

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

Politics

National Council election 2023

SVP35.8% · strongest party

SVP35.8%

Mitte28.2%

FDP13.6%

SP10.6%

GRÜNE5.4%

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

Taxes 2026

ESTV

Municipal tax multiplier125%

Cantonal tax multiplier104%

125%SO range 65%145%

Tax rank 81 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

17'010 CHF(17%)

Rank 64 of 104 in the canton · 1830 of 2110 in Switzerland

Median canton 16'810 CHF · median Switzerland 15'290 CHF

Cheapest Kammersrohr 13'027 CHF · most expensive Bolken 18'375 CHF

Income tax as % of gross income

100'000 CHF:17'010 CHF(~17%)

BalsthalCanton range SolothurnSwitzerland median

Show data table

Gross income	Balsthal	Solothurn	Switzerland median
40'000	8%	6.1–8.8%	5.4%
50'000	10.4%	7.9–11.4%	7.8%
60'000	12.4%	9.4–13.5%	10.5%
70'000	13.9%	10.5–15.1%	11.9%
80'000	15.1%	11.5–16.3%	13.1%
90'000	16%	12.2–17.3%	14.1%
100'000	17%	13–18.4%	15.3%
110'000	17.9%	13.8–19.3%	16.3%
120'000	18.6%	14.4–20.1%	17.2%
130'000	19.4%	15.1–20.9%	18.1%
140'000	20.2%	15.7–21.8%	19%
150'000	20.9%	16.4–22.5%	19.7%
175'000	22.7%	17.8–24.3%	21.6%
200'000	24.1%	19.1–25.8%	23.2%
225'000	25.3%	20.1–27%	24.6%
250'000	26.4%	21.1–28.2%	25.8%
275'000	27.3%	21.9–29.1%	26.8%
300'000	28%	22.5–29.8%	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 1991–20201'140 mm

9 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

1'092 m

Mean elevation

655 m

Relief

621 m

Mean slope

16.5°

Flat share

17.1%

South-facing

24.9%

Above 2000 m

0.0%

Relief 621 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

49 GWh/yr

Roofs + façades

62.8 GWh/yr

≈ households powered

10'900

49 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

32.69 Rp./kWh

Energy

15.2 Rp./kWh

Grid usage

12.62 Rp./kWh

Levies + grid surcharge

3.8 Rp./kWh

32.69 Rp./kWh9.6443.61

Canton median 30.42 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator Aare Versorgungs AG (AVAG)

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

3.44 %

Avg. rooms

3.9

Dwellings

3'226

Built before 194630.3%

Built since 200118.2%

3.44 %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 78 min · Car 54 min

AgglomerationPT 26 min · Car 13 min

Remoteness 11/104 in canton

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

Municipality

Wikidata · CC0

Websitebalsthal.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities6'622 #10 SO · #309 CH Families & children21.1% #18 SO · #779 CH Age structure20.3% #81 SO · #1177 CH Women share47.8% #92 SO · #1904 CH Foreign residents37.2% #9 SO · #113 CH Population density422/km² #38 SO · #587 CH Tax burden17'010 #64 SO · #1830 CH Taxes125% #81 SO Warmest municipalities9 °C #80 SO · #1366 CH Sunniest municipalities40% #89 SO · #1872 CH Rainiest municipalities1'140 mm #36 SO · #871 CH Voter turnout51.8% #58 SO · #1489 CH Against Switzerland16% #26 SO · #843 CH Aligned with Switzerland84% #49 SO · #585 CH SVP strongholds35.8% #27 SO · #912 CH SP strongholds10.6% #69 SO · #1453 CH Centre strongholds28.2% #16 SO · #273 CH FDP strongholds13.6% #73 SO · #968 CH GLP strongholds3.6% #86 SO · #1471 CH Green strongholds5.4% #77 SO · #1461 CH Largest by area15.7 km² #10 SO · #612 CH Highest municipalities501 m #37 SO · #1203 CH Remotest municipalities78 min #11 SO · #800 CH Best-connected municipalities78 min #91 SO · #1299 CH Highest peaks1'092 m #18 SO · #671 CH Highest-lying municipalities655 m #25 SO · #868 CH Greatest vertical range621 m #17 SO · #599 CH Steepest municipalities16.5° #20 SO · #515 CH Solar potential49 GWh #8 SO · #341 CH Cheapest electricity32.69 Rp./kWh #98 SO · #1983 CH Most expensive electricity32.69 Rp./kWh #6 SO · #123 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Balsthal4710 Mümliswil4717

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Balsthal?: Balsthal has 2 postal codes: 4710, 4717.
What is the tax rate in Balsthal?: The municipal tax multiplier of Balsthal is 125% (2026); canton SO levies 104%.
How much tax do you pay in Balsthal?: A single person without children pays about 17'010 CHF income tax in Balsthal on 100'000 CHF gross income (federal, cantonal, municipal), rank 64 of 104 in canton SO. Source: ESTV (2026).
How many residents does Balsthal have?: Balsthal has 6'622 residents (2025).
How many foreign residents live in Balsthal?: Balsthal has 2'465 foreign residents, a share of 37.22% (2025).

Map

OpenStreetMap

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