What is the postal code of Trimbach?

Trimbach has 3 postal codes: 4600, 4632, 4634.

What is the tax rate in Trimbach?

The municipal tax multiplier of Trimbach is 140% (2026); canton SO levies 104%.

How much tax do you pay in Trimbach?

A single person without children pays about 18'061 CHF income tax in Trimbach on 100'000 CHF gross income (federal, cantonal, municipal), rank 103 of 104 in canton SO. Source: ESTV (2026).

How many residents does Trimbach have?

Trimbach has 6'928 residents (2025).

How many foreign residents live in Trimbach?

Trimbach has 3'099 foreign residents, a share of 44.73% (2025).

Switzerland · Canton SO

Trimbach

4600–4634

SO CANTON4600 4632 4634

Residents

6'928

Area

7.6 km²

Population density

912 pop./km²

Elevation

549 m a.s.l.

Terrain up to

859 m a.s.l.

Tax multiplier

140%

Postal codes

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

Demographics

BFS · 2025

Women

3'409 49.2%

Men

3'519 50.8%

Children & youth (0–19)

1'420 20.5%

Swiss citizens

3'829 55.3%

Foreign residents

3'099 44.7%

Population density

912 pop./km²

0–19 · 1'420 · 20.5%20–64 · 4'240 · 61.2%65+ · 1'268 · 18.3%

Foreign residents 44.7%0%64.0%

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

Vote results for Trimbach

BFS

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

46.5% YesNo 53.5%

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

46.9% YesNo 53.1%

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

64.4% YesNo 35.6%

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

64.7% YesNo 35.3%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

54.5% YesNo 45.5%

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

32.7% YesNo 67.3%

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

37.3% YesNo 62.7%

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

41.2% YesNo 58.8%

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

70.1% YesNo 29.9%

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

47.1% YesNo 53.0%

All federal votes →

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

Politics

National Council election 2023

SP26.4% · strongest party

SP26.4%

SVP26.0%

Mitte16.5%

GRÜNE12.5%

FDP9.5%

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

Taxes 2026

ESTV

Municipal tax multiplier140%

Cantonal tax multiplier104%

140%SO range 65%145%

Tax rank 103 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

18'061 CHF(18.1%)

Rank 103 of 104 in the canton · 2081 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:18'061 CHF(~18.1%)

TrimbachCanton range SolothurnSwitzerland median

Show data table

Gross income	Trimbach	Solothurn	Switzerland median
40'000	8.7%	6.1–8.8%	5.4%
50'000	11.2%	7.9–11.4%	7.8%
60'000	13.2%	9.4–13.5%	10.5%
70'000	14.8%	10.5–15.1%	11.9%
80'000	16.1%	11.5–16.3%	13.1%
90'000	17%	12.2–17.3%	14.1%
100'000	18.1%	13–18.4%	15.3%
110'000	19%	13.8–19.3%	16.3%
120'000	19.7%	14.4–20.1%	17.2%
130'000	20.6%	15.1–20.9%	18.1%
140'000	21.4%	15.7–21.8%	19%
150'000	22.1%	16.4–22.5%	19.7%
175'000	23.9%	17.8–24.3%	21.6%
200'000	25.4%	19.1–25.8%	23.2%
225'000	26.6%	20.1–27%	24.6%
250'000	27.7%	21.1–28.2%	25.8%
275'000	28.6%	21.9–29.1%	26.8%
300'000	29.4%	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 1991–20209.5 °C

Precipitation 1991–20201'049 mm

9.5 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

859 m

Mean elevation

560 m

Relief

471 m

Mean slope

16.9°

Flat share

15.8%

South-facing

39.8%

Above 2000 m

0.0%

Relief 471 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

34 GWh/yr

Roofs + façades

45.8 GWh/yr

≈ households powered

7'600

34 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

32.34 Rp./kWh

Energy

15.2 Rp./kWh

Grid usage

12.62 Rp./kWh

Levies + grid surcharge

3.45 Rp./kWh

32.34 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

6.4 %

Avg. rooms

3.6

Dwellings

3'420

Built before 194622.0%

Built since 20019.6%

6.4 %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 58 min · Car 48 min

AgglomerationPT 16 min · Car 8 min

Remoteness 75/104 in canton

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

Municipality

Wikidata · CC0

Websitetrimbach.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities6'928 #7 SO · #285 CH Families & children20.5% #33 SO · #972 CH Age structure18.3% #97 SO · #1587 CH Women share49.2% #69 SO · #1425 CH Foreign residents44.7% #3 SO · #41 CH Population density912/km² #12 SO · #260 CH Tax burden18'061 #103 SO · #2081 CH Taxes140% #103 SO Warmest municipalities9.5 °C #40 SO · #969 CH Sunniest municipalities40.5% #46 SO · #1606 CH Rainiest municipalities1'049 mm #91 SO · #1392 CH Voter turnout43.2% #102 SO · #2056 CH Against Switzerland14% #32 SO · #1003 CH Aligned with Switzerland86% #42 SO · #459 CH SVP strongholds26% #88 SO · #1514 CH SP strongholds26.4% #3 SO · #124 CH Centre strongholds16.5% #64 SO · #724 CH FDP strongholds9.5% #103 SO · #1448 CH GLP strongholds5.1% #61 SO · #1160 CH Green strongholds12.5% #13 SO · #291 CH Largest by area7.6 km² #34 SO · #1187 CH Highest municipalities549 m #27 SO · #1010 CH Remotest municipalities58 min #75 SO · #1393 CH Best-connected municipalities58 min #26 SO · #706 CH Highest peaks859 m #38 SO · #887 CH Highest-lying municipalities560 m #41 SO · #1174 CH Greatest vertical range471 m #31 SO · #721 CH Steepest municipalities16.9° #16 SO · #492 CH Solar potential34 GWh #24 SO · #588 CH Cheapest electricity32.34 Rp./kWh #92 SO · #1958 CH Most expensive electricity32.34 Rp./kWh #9 SO · #145 CH

Postal codes (3)

swisstopo

Localities

swisstopo · 3

Olten4600 Trimbach4632 Wisen SO4634

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Trimbach?: Trimbach has 3 postal codes: 4600, 4632, 4634.
What is the tax rate in Trimbach?: The municipal tax multiplier of Trimbach is 140% (2026); canton SO levies 104%.
How much tax do you pay in Trimbach?: A single person without children pays about 18'061 CHF income tax in Trimbach on 100'000 CHF gross income (federal, cantonal, municipal), rank 103 of 104 in canton SO. Source: ESTV (2026).
How many residents does Trimbach have?: Trimbach has 6'928 residents (2025).
How many foreign residents live in Trimbach?: Trimbach has 3'099 foreign residents, a share of 44.73% (2025).

Map

OpenStreetMap

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