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 · Bezirk Gösgen

Trimbach

4600–4634

SO CANTON4600 4632 4634

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

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%

Population change 2025: +74 (+1.1%) · 65 births · 51 deaths · net migration +50

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 Trimbach

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 Gösgen: 26.4% Yes

33.4% YesNo 66.6%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Gösgen: 29.0% Yes

25.2% YesNo 74.8%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Gösgen: 56.5% Yes

46.5% YesNo 53.5%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Gösgen: 53.3% Yes

46.9% YesNo 53.1%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Gösgen: 58.9% Yes

64.4% YesNo 35.6%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Gösgen: 59.1% Yes

64.7% YesNo 35.3%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Gösgen: 50.6% Yes

54.5% YesNo 45.5%

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 Gösgen: 23.5% Yes

32.7% YesNo 67.3%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Gösgen: 41.8% Yes

37.3% YesNo 62.7%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Gösgen: 39.0% Yes

41.2% YesNo 58.8%

All federal votes →

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

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 25.09.2026

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 24.09.2026

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

Per inhabitant

4'912 kWh/yr

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 24.09.2026

Electricity

ElCom · 2027

Tariff H4

31.74 Rp./kWh

Energy

13.45 Rp./kWh

Grid usage

13.78 Rp./kWh

Levies + grid surcharge

3.45 Rp./kWh

31.74 Rp./kWh10.5645.88

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

Network operator Primeo Netz AG

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 Trimbach →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

6.4 %

Second homes

10.1 %

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 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

1'769

Workplaces

285

Services share

68 %

Jobs by sector: Primary 41 (2.3%) · Secondary 525 (29.7%) · Tertiary 1'203 (68.0%)

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

Agriculture

BFS · 2025

Farms

Organic share

25 %

Farmland

283 ha

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

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 24.09.2026

Municipality

Wikidata · CC0

BFS municipality number2500

Websitetrimbach.ch ↗

DistrictBezirk Gösgen

Wikidata · continuously updated, retrieved 24.09.2026

Where Trimbach ranks

Largest municipalities6'928 #7 SO · #285 CH Growing municipalities1.1% #35 SO · #745 CH Shrinking municipalities1.1% #70 SO · #1363 CH Jobs per resident0.26 #68 SO · #1476 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 turnout44.2% #102 SO · #2058 CH Against Switzerland13.7% #32 SO · #1003 CH Aligned with Switzerland86.3% #42 SO · #459 CH SVP strongholds26% #88 SO · #1517 CH SP strongholds26.4% #3 SO · #124 CH Centre strongholds16.5% #64 SO · #726 CH FDP strongholds9.5% #103 SO · #1452 CH GLP strongholds5.1% #62 SO · #1163 CH Green strongholds12.5% #13 SO · #293 CH Largest by area7.6 km² #34 SO · #1187 CH Highest municipalities549 m #27 SO · #1010 CH Second homes10.1% #48 SO · #1193 CH Organic farming25% #18 SO · #445 CH Best-connected municipalities58 min #26 SO · #707 CH Remotest municipalities58 min #75 SO · #1393 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 Solar potential per capita4'912 kWh #104 SO · #1983 CH Cheapest electricity31.74 Rp./kWh #95 SO · #1980 CH Most expensive electricity31.74 Rp./kWh #7 SO · #123 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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