What is the postal code of Starrkirch-Wil?

Starrkirch-Wil has 3 postal codes: 4600, 4656, 4657.

What is the tax rate in Starrkirch-Wil?

The municipal tax multiplier of Starrkirch-Wil is 107% (2026); canton SO levies 104%.

How much tax do you pay in Starrkirch-Wil?

A single person without children pays about 15'829 CHF income tax in Starrkirch-Wil on 100'000 CHF gross income (federal, cantonal, municipal), rank 11 of 104 in canton SO. Source: ESTV (2026).

How many residents does Starrkirch-Wil have?

Starrkirch-Wil has 2'020 residents (2025).

How many foreign residents live in Starrkirch-Wil?

Starrkirch-Wil has 390 foreign residents, a share of 19.31% (2025).

Switzerland · Canton SO · Bezirk Olten

Starrkirch-Wil

4600–4657

SO CANTON4600 4656 4657

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

Demographics

BFS · 2025

Women

1'007 49.9%

Men

1'013 50.1%

Children & youth (0–19)

422 20.9%

Swiss citizens

1'630 80.7%

Foreign residents

390 19.3%

Population density

1'092 pop./km²

0–19 · 422 · 20.9%20–64 · 1'196 · 59.2%65+ · 402 · 19.9%

Foreign residents 19.3%0%64.0%

Population change 2025: +40 (+2%) · 21 births · 13 deaths · net migration +33

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 Starrkirch-Wil

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 Olten: 27.9% Yes

27.8% YesNo 72.2%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Olten: 25.3% Yes

16.2% YesNo 83.8%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Olten: 53.2% Yes

52.0% YesNo 48.0%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Olten: 46.7% Yes

38.0% YesNo 62.0%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Olten: 62.8% Yes

68.2% YesNo 31.8%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Olten: 62.8% Yes

67.7% YesNo 32.3%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Olten: 56.6% Yes

63.9% YesNo 36.1%

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 Olten: 28.5% Yes

33.6% YesNo 66.4%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Olten: 36.7% Yes

29.3% YesNo 70.7%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Olten: 35.8% Yes

29.5% YesNo 70.5%

All federal votes →

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

Politics

National Council election 2023

FDP25.6% · strongest party

FDP25.6%

SP24.3%

SVP19.1%

GRÜNE11.7%

Mitte10.5%

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

Taxes 2026

ESTV

Municipal tax multiplier107%

Cantonal tax multiplier104%

107%SO range 65%145%

Tax rank 13 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

15'829 CHF(15.8%)

Rank 11 of 104 in the canton · 1201 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:15'829 CHF(~15.8%)

Starrkirch-WilCanton range SolothurnSwitzerland median

Show data table

Gross income	Starrkirch-Wil	Solothurn	Switzerland median
40'000	7.5%	6.1–8.8%	5.4%
50'000	9.7%	7.9–11.4%	7.8%
60'000	11.5%	9.4–13.5%	10.5%
70'000	12.9%	10.5–15.1%	11.9%
80'000	14%	11.5–16.3%	13.1%
90'000	14.9%	12.2–17.3%	14.1%
100'000	15.8%	13–18.4%	15.3%
110'000	16.7%	13.8–19.3%	16.3%
120'000	17.4%	14.4–20.1%	17.2%
130'000	18.1%	15.1–20.9%	18.1%
140'000	18.9%	15.7–21.8%	19%
150'000	19.6%	16.4–22.5%	19.7%
175'000	21.2%	17.8–24.3%	21.6%
200'000	22.6%	19.1–25.8%	23.2%
225'000	23.8%	20.1–27%	24.6%
250'000	24.8%	21.1–28.2%	25.8%
275'000	25.7%	21.9–29.1%	26.8%
300'000	26.4%	22.5–29.8%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

Gösgen · 4.1 km

Annual mean temperature 202510.8 °C

Precipitation 20251'017 mm

10.8 °CCH range -5.5°14°

2025 · MeteoSwiss, retrieved 24.09.2026

Terrain

swisstopo · DHM 40 m

Highest point

690 m

Mean elevation

489 m

Relief

285 m

Mean slope

10.4°

Flat share

24.9%

South-facing

1.7%

Above 2000 m

0.0%

Relief 285 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

10.1 GWh/yr

Roofs + façades

13.5 GWh/yr

≈ households powered

2'200

Per inhabitant

5'010 kWh/yr

10 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

31.71 Rp./kWh

Energy

13.45 Rp./kWh

Grid usage

13.78 Rp./kWh

Levies + grid surcharge

3.42 Rp./kWh

31.71 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 Starrkirch-Wil →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

1.11 %

Second homes

5.7 %

Avg. rooms

4.3

Dwellings

904

Built before 194615.3%

Built since 200136.5%

1.11 %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

164

Workplaces

Services share

78 %

Jobs by sector: Primary 6 (3.7%) · Secondary 30 (18.3%) · Tertiary 128 (78.0%)

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

Agriculture

BFS · 2025

Farms

Organic share

0 %

Farmland

46 ha

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

Accessibility

ARE · NPVM

Major centrePT 62 min · Car 54 min

AgglomerationPT 12 min · Car 9 min

Remoteness 59/104 in canton

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

Municipality

Wikidata · CC0

BFS municipality number2584

Websitestarrkirch-wil.ch ↗

DistrictBezirk Olten

Wikidata · continuously updated, retrieved 24.09.2026

Where Starrkirch-Wil ranks

Largest municipalities2'020 #43 SO · #967 CH Growing municipalities2% #16 SO · #342 CH Shrinking municipalities2% #89 SO · #1769 CH Jobs per resident0.08 #104 SO · #2098 CH Families & children20.9% #25 SO · #847 CH Age structure19.9% #86 SO · #1257 CH Women share49.9% #53 SO · #1008 CH Foreign residents19.3% #33 SO · #925 CH Population density1'092/km² #9 SO · #195 CH Tax burden15'829 #13 SO · #1203 CH Taxes107% #13 SO Voter turnout58.5% #23 SO · #765 CH Against Switzerland5.9% #71 SO · #1406 CH Aligned with Switzerland94.1% #8 SO · #57 CH SVP strongholds19.1% #98 SO · #1827 CH SP strongholds24.3% #7 SO · #206 CH Centre strongholds10.5% #94 SO · #1152 CH FDP strongholds25.6% #15 SO · #208 CH GLP strongholds6.8% #29 SO · #793 CH Green strongholds11.7% #18 SO · #379 CH Largest by area1.9 km² #96 SO · #2025 CH Highest municipalities419 m #91 SO · #1787 CH Second homes5.7% #98 SO · #1997 CH Organic farming0% #98 SO · #1782 CH Best-connected municipalities62 min #46 SO · #851 CH Remotest municipalities62 min #59 SO · #1261 CH Highest peaks690 m #50 SO · #1235 CH Highest-lying municipalities489 m #62 SO · #1486 CH Greatest vertical range285 m #49 SO · #1032 CH Steepest municipalities10.4° #43 SO · #892 CH Solar potential10 GWh #76 SO · #1549 CH Solar potential per capita5'010 kWh #103 SO · #1970 CH Cheapest electricity31.71 Rp./kWh #93 SO · #1978 CH Most expensive electricity31.71 Rp./kWh #12 SO · #129 CH

Postal codes (3)

swisstopo

Localities

swisstopo · 3

Dulliken4657 Olten4600 Starrkirch-Wil4656

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Starrkirch-Wil?: Starrkirch-Wil has 3 postal codes: 4600, 4656, 4657.
What is the tax rate in Starrkirch-Wil?: The municipal tax multiplier of Starrkirch-Wil is 107% (2026); canton SO levies 104%.
How much tax do you pay in Starrkirch-Wil?: A single person without children pays about 15'829 CHF income tax in Starrkirch-Wil on 100'000 CHF gross income (federal, cantonal, municipal), rank 11 of 104 in canton SO. Source: ESTV (2026).
How many residents does Starrkirch-Wil have?: Starrkirch-Wil has 2'020 residents (2025).
How many foreign residents live in Starrkirch-Wil?: Starrkirch-Wil has 390 foreign residents, a share of 19.31% (2025).

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