What is the postal code of Biberist?

Biberist has 4 postal codes: 4500, 4528, 4562, 4574.

What is the tax rate in Biberist?

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

How much tax do you pay in Biberist?

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

How many residents does Biberist have?

Biberist has 9'531 residents (2025).

How many foreign residents live in Biberist?

Biberist has 2'641 foreign residents, a share of 27.71% (2025).

Switzerland · Canton SO · Bezirk Wasseramt

Biberist

4500–4574

SO CANTON4500 4528 4562 4574

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

Demographics

BFS · 2025

Women

4'822 50.6%

Men

4'709 49.4%

Children & youth (0–19)

1'827 19.2%

Swiss citizens

6'890 72.3%

Foreign residents

2'641 27.7%

Population density

778 pop./km²

0–19 · 1'827 · 19.2%20–64 · 5'655 · 59.3%65+ · 2'049 · 21.5%

Foreign residents 27.7%0%64.0%

Population change 2025: −14 (−0.2%) · 86 births · 83 deaths · net migration −14

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 Biberist

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 Bezirk Wasseramt: 24.2% Yes

28.6% YesNo 71.4%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Wasseramt: 25.9% Yes

23.6% YesNo 76.4%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Wasseramt: 54.5% Yes

51.0% YesNo 49.0%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Wasseramt: 50.5% Yes

44.6% YesNo 55.4%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Wasseramt: 58.2% Yes

63.5% YesNo 36.5%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Wasseramt: 58.4% Yes

63.8% YesNo 36.3%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Wasseramt: 54.4% Yes

56.7% YesNo 43.3%

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 Bezirk Wasseramt: 24.0% Yes

27.3% YesNo 72.7%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Wasseramt: 40.5% Yes

37.1% YesNo 62.9%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Wasseramt: 39.9% Yes

38.0% YesNo 62.0%

All federal votes →

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

Politics

National Council election 2023

SVP28.1% · strongest party

SVP28.1%

SP23.2%

FDP16.4%

Mitte11.5%

GRÜNE11.0%

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

Taxes 2026

ESTV

Municipal tax multiplier125%

Cantonal tax multiplier104%

125%SO range 65%145%

Tax rank 68 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%)

BiberistCanton range SolothurnSwitzerland median

Show data table

Gross income	Biberist	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 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–20209.4 °C

Precipitation 1991–20201'132 mm

9.4 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

543 m

Mean elevation

470 m

Relief

117 m

Mean slope

4.1°

Flat share

71.0%

South-facing

5.5%

Above 2000 m

0.0%

Relief 117 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

78.4 GWh/yr

Roofs + façades

100.3 GWh/yr

≈ households powered

17'400

Per inhabitant

8'222 kWh/yr

78 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 range H4

25.09–26.9 Rp./kWh

26 Rp./kWh10.5645.88

Canton median 28.51 Rp./kWhSwiss median 26.53 Rp./kWh

Network operators BKW Energie AG · EV Energieversorgung Biberist

This municipality is served by 2 network operators with different tariffs; the range spans the cheapest and the most expensive.

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

Standard model, deductible 300606 CHF/mo

Ø premium in canton Solothurn424 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Biberist →Canton Solothurn →Premiums explained →

Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Solothurn (2024, BAG) — it applies canton-wide, not to any single location.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE

Vacancy rate

1.22 %

Second homes

10.9 %

Avg. rooms

3.8

Dwellings

4'747

Built before 194619.0%

Built since 200125.7%

1.22 %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

3'453

Workplaces

506

Services share

76.6 %

Jobs by sector: Primary 63 (1.8%) · Secondary 744 (21.5%) · Tertiary 2'646 (76.6%)

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

Agriculture

BFS · 2025

Farms

Organic share

6.3 %

Farmland

416 ha

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

Accessibility

ARE · NPVM

Major centrePT 48 min · Car 40 min

AgglomerationPT 13 min · Car 6 min

Remoteness 94/104 in canton

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

Municipality

Wikidata · CC0

BFS municipality number2513

Head of governmentStefan Hug-Portmann · Sozialdemokratische Partei der Schweiz

Websitebiberist.ch ↗

DistrictBezirk Wasseramt

Wikidata · continuously updated, retrieved 24.09.2026

Where Biberist ranks

Largest municipalities9'531 #5 SO · #199 CH Growing municipalities-0.2% #68 SO · #1507 CH Shrinking municipalities-0.2% #37 SO · #604 CH Jobs per resident0.36 #38 SO · #1001 CH Families & children19.2% #61 SO · #1392 CH Age structure21.5% #64 SO · #951 CH Women share50.6% #30 SO · #576 CH Foreign residents27.7% #19 SO · #419 CH Population density778/km² #17 SO · #315 CH Tax burden17'010 #66 SO · #1832 CH Taxes125% #68 SO Warmest municipalities9.4 °C #50 SO · #1054 CH Sunniest municipalities40% #90 SO · #1873 CH Rainiest municipalities1'132 mm #39 SO · #917 CH Voter turnout51.6% #73 SO · #1634 CH Against Switzerland4.9% #73 SO · #1436 CH Aligned with Switzerland95.1% #2 SO · #28 CH SVP strongholds28.1% #80 SO · #1393 CH SP strongholds23.2% #10 SO · #253 CH Centre strongholds11.5% #89 SO · #1067 CH FDP strongholds16.4% #50 SO · #707 CH GLP strongholds6.2% #37 SO · #932 CH Green strongholds11% #20 SO · #447 CH Largest by area12.3 km² #15 SO · #789 CH Highest municipalities493 m #45 SO · #1247 CH Second homes10.9% #39 SO · #1064 CH Organic farming6.3% #66 SO · #1468 CH Best-connected municipalities48 min #12 SO · #404 CH Remotest municipalities48 min #94 SO · #1697 CH Highest peaks543 m #73 SO · #1743 CH Highest-lying municipalities470 m #70 SO · #1591 CH Greatest vertical range117 m #75 SO · #1752 CH Steepest municipalities4.1° #77 SO · #1726 CH Solar potential78 GWh #4 SO · #155 CH Solar potential per capita8'222 kWh #68 SO · #1416 CH Cheapest electricity26 Rp./kWh #30 SO · #886 CH Most expensive electricity26 Rp./kWh #75 SO · #1221 CH

Postal codes (4)

swisstopo

Localities

swisstopo · 4

Biberist4562 Lüsslingen4574 Solothurn4500 Zuchwil4528

Nearby municipalities

swisstopo

Feldbrunnen-St. Niklaus

SO · 2.5 km

Lohn-Ammannsegg

SO · 3.3 km

Frequently asked questions

What is the postal code of Biberist?: Biberist has 4 postal codes: 4500, 4528, 4562, 4574.
What is the tax rate in Biberist?: The municipal tax multiplier of Biberist is 125% (2026); canton SO levies 104%.
How much tax do you pay in Biberist?: A single person without children pays about 17'010 CHF income tax in Biberist on 100'000 CHF gross income (federal, cantonal, municipal), rank 64 of 104 in canton SO. Source: ESTV (2026).
How many residents does Biberist have?: Biberist has 9'531 residents (2025).
How many foreign residents live in Biberist?: Biberist has 2'641 foreign residents, a share of 27.71% (2025).

Map

OpenStreetMap

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