What is the postal code of Unterramsern?

The postal code of Unterramsern is 4588.

What is the tax rate in Unterramsern?

The municipal tax multiplier of Unterramsern is 110% (2026); canton SO levies 104%.

How much tax do you pay in Unterramsern?

A single person without children pays about 16'029 CHF income tax in Unterramsern on 100'000 CHF gross income (federal, cantonal, municipal), rank 21 of 104 in canton SO. Source: ESTV (2026).

How many residents does Unterramsern have?

Unterramsern has 230 residents (2025).

How many foreign residents live in Unterramsern?

Unterramsern has 7 foreign residents, a share of 3.04% (2025).

Switzerland · Canton SO · Bezirk Bucheggberg

Unterramsern

4588

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

Demographics

BFS · 2025

Women

122 53.0%

Men

108 47.0%

Children & youth (0–19)

48 20.9%

Swiss citizens

223 97.0%

Foreign residents

7 3.0%

Population density

146 pop./km²

0–19 · 48 · 20.9%20–64 · 141 · 61.3%65+ · 41 · 17.8%

Foreign residents 3.0%0%64.0%

Population change 2025: +5 (+2.2%) · 3 births · 1 deaths · net migration +3

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 Unterramsern

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 Bucheggberg: 22.3% Yes

18.7% YesNo 81.3%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Bucheggberg: 28.6% Yes

29.3% YesNo 70.8%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Bucheggberg: 56.7% Yes

64.2% YesNo 35.8%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Bucheggberg: 53.4% Yes

50.4% YesNo 49.6%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Bucheggberg: 55.1% Yes

59.4% YesNo 40.6%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Bucheggberg: 55.3% Yes

58.5% YesNo 41.5%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Bucheggberg: 51.2% Yes

55.1% YesNo 44.9%

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 Bucheggberg: 21.6% Yes

14.2% YesNo 85.9%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Bucheggberg: 40.6% Yes

38.3% YesNo 61.7%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Bucheggberg: 39.7% Yes

40.8% YesNo 59.2%

All federal votes →

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

Politics

National Council election 2023

SVP32.7% · strongest party

SVP32.7%

FDP30.4%

Mitte18.6%

GLP7.6%

SP7.2%

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

Taxes 2026

ESTV

Municipal tax multiplier110%

Cantonal tax multiplier104%

110%SO range 65%145%

Tax rank 21 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

16'029 CHF(16%)

Rank 21 of 104 in the canton · 1294 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:16'029 CHF(~16%)

UnterramsernCanton range SolothurnSwitzerland median

Show data table

Gross income	Unterramsern	Solothurn	Switzerland median
40'000	7.6%	6.1–8.8%	5.4%
50'000	9.8%	7.9–11.4%	7.8%
60'000	11.7%	9.4–13.5%	10.5%
70'000	13.1%	10.5–15.1%	11.9%
80'000	14.2%	11.5–16.3%	13.1%
90'000	15%	12.2–17.3%	14.1%
100'000	16%	13–18.4%	15.3%
110'000	16.9%	13.8–19.3%	16.3%
120'000	17.6%	14.4–20.1%	17.2%
130'000	18.4%	15.1–20.9%	18.1%
140'000	19.1%	15.7–21.8%	19%
150'000	19.8%	16.4–22.5%	19.7%
175'000	21.5%	17.8–24.3%	21.6%
200'000	22.8%	19.1–25.8%	23.2%
225'000	24%	20.1–27%	24.6%
250'000	25.1%	21.1–28.2%	25.8%
275'000	25.9%	21.9–29.1%	26.8%
300'000	26.6%	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 1991–20201'115 mm

9.5 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

603 m

Mean elevation

495 m

Relief

137 m

Mean slope

7.3°

Flat share

49.9%

South-facing

39.1%

Above 2000 m

0.0%

Relief 137 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

3.3 GWh/yr

Roofs + façades

4.2 GWh/yr

≈ households powered

700

Per inhabitant

14'261 kWh/yr

3 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

28.08 Rp./kWh

Energy

12.6 Rp./kWh

Grid usage

11.32 Rp./kWh

Levies + grid surcharge

2.3 Rp./kWh

28.08 Rp./kWh10.5645.88

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

Network operator Genossenschaft Elektra, Jegenstorf

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 Unterramsern →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

0 %

Second homes

10.1 %

Avg. rooms

4.4

Dwellings

105

Built before 194646.7%

Built since 200128.6%

0 %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

Workplaces

Services share

29.7 %

Jobs by sector: Primary 19 (29.7%) · Secondary 26 (40.6%) · Tertiary 19 (29.7%)

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

Agriculture

BFS · 2025

Farms

Organic share

0 %

Farmland

149 ha

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

Accessibility

ARE · NPVM

Major centrePT 56 min · Car 39 min

AgglomerationPT 43 min · Car 22 min

Remoteness 82/104 in canton

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

Municipality

Wikidata · CC0

BFS municipality number2463

Websiteunterramsern.ch ↗

DistrictBezirk Bucheggberg

Wikidata · continuously updated, retrieved 24.09.2026

Where Unterramsern ranks

Largest municipalities230 #101 SO · #2011 CH Growing municipalities2.2% #12 SO · #296 CH Shrinking municipalities2.2% #93 SO · #1812 CH Jobs per resident0.28 #61 SO · #1382 CH Families & children20.9% #22 SO · #844 CH Age structure17.8% #100 SO · #1677 CH Women share53% #2 SO · #39 CH Foreign residents3% #104 SO · #2071 CH Population density146/km² #81 SO · #1239 CH Tax burden16'029 #22 SO · #1295 CH Taxes110% #21 SO Warmest municipalities9.5 °C #39 SO · #968 CH Sunniest municipalities41.1% #15 SO · #1366 CH Rainiest municipalities1'115 mm #46 SO · #1014 CH Voter turnout58.6% #20 SO · #749 CH SVP strongholds32.7% #49 SO · #1113 CH SP strongholds7.2% #85 SO · #1770 CH Centre strongholds18.6% #55 SO · #610 CH FDP strongholds30.4% #5 SO · #83 CH GLP strongholds7.6% #15 SO · #642 CH Green strongholds1.8% #104 SO · #1977 CH Largest by area1.6 km² #99 SO · #2054 CH Highest municipalities475 m #52 SO · #1348 CH Second homes10.1% #47 SO · #1184 CH Organic farming0% #68 SO · #1752 CH Best-connected municipalities56 min #21 SO · #648 CH Remotest municipalities56 min #82 SO · #1450 CH Highest peaks603 m #62 SO · #1529 CH Highest-lying municipalities495 m #61 SO · #1449 CH Greatest vertical range137 m #70 SO · #1661 CH Steepest municipalities7.3° #56 SO · #1200 CH Solar potential3 GWh #101 SO · #2035 CH Solar potential per capita14'261 kWh #9 SO · #502 CH Cheapest electricity28.08 Rp./kWh #44 SO · #1358 CH Most expensive electricity28.08 Rp./kWh #60 SO · #750 CH

Postal codes (1)

swisstopo

4588

Unterramsern

Localities

swisstopo · 1

Unterramsern4588

Nearby municipalities

swisstopo

Lüterkofen-Ichertswil

SO · 5.2 km

Frequently asked questions

What is the postal code of Unterramsern?: The postal code of Unterramsern is 4588.
What is the tax rate in Unterramsern?: The municipal tax multiplier of Unterramsern is 110% (2026); canton SO levies 104%.
How much tax do you pay in Unterramsern?: A single person without children pays about 16'029 CHF income tax in Unterramsern on 100'000 CHF gross income (federal, cantonal, municipal), rank 21 of 104 in canton SO. Source: ESTV (2026).
How many residents does Unterramsern have?: Unterramsern has 230 residents (2025).
How many foreign residents live in Unterramsern?: Unterramsern has 7 foreign residents, a share of 3.04% (2025).

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