What is the postal code of Riedholz?

Riedholz has 2 postal codes: 4523, 4533.

What is the tax rate in Riedholz?

The municipal tax multiplier of Riedholz is 115% (2026); canton SO levies 104%.

How much tax do you pay in Riedholz?

A single person without children pays about 16'343 CHF income tax in Riedholz on 100'000 CHF gross income (federal, cantonal, municipal), rank 32 of 104 in canton SO. Source: ESTV (2026).

How many residents does Riedholz have?

Riedholz has 2'319 residents (2025).

How many foreign residents live in Riedholz?

Riedholz has 265 foreign residents, a share of 11.43% (2025).

Switzerland · Canton SO

Riedholz

4523–4533

SO CANTON4523 4533

Residents

2'319

Area

7.2 km²

Population density

324 pop./km²

Elevation

474 m a.s.l.

Tax multiplier

115%

Postal codes

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

Demographics

BFS · 2025

Women

1'193 51.4%

Men

1'126 48.6%

Children & youth (0–19)

470 20.3%

Swiss citizens

2'054 88.6%

Foreign residents

265 11.4%

Population density

324 pop./km²

0–19 · 470 · 20.3%20–64 · 1'300 · 56.1%65+ · 549 · 23.7%

Foreign residents 11.4%0%64.0%

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

Vote results for Riedholz

BFS

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

54.6% YesNo 45.4%

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

46.8% YesNo 53.2%

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

61.4% YesNo 38.7%

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

61.1% YesNo 38.9%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

53.9% YesNo 46.1%

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

23.8% YesNo 76.3%

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

33.3% YesNo 66.7%

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

33.2% YesNo 66.8%

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

73.3% YesNo 26.7%

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

38.9% YesNo 61.1%

All federal votes →

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

Politics

National Council election 2023

FDP24.5% · strongest party

FDP24.5%

SVP23.4%

SP19.7%

Mitte11.2%

GRÜNE9.3%

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

Taxes 2026

ESTV

Municipal tax multiplier115%

Cantonal tax multiplier104%

115%SO range 65%145%

Tax rank 34 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

16'343 CHF(16.3%)

Rank 32 of 104 in the canton · 1469 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:16'343 CHF(~16.3%)

RiedholzCanton range SolothurnSwitzerland median

Show data table

Gross income	Riedholz	Solothurn	Switzerland median
40'000	7.7%	6.1–8.8%	5.4%
50'000	10%	7.9–11.4%	7.8%
60'000	11.9%	9.4–13.5%	10.5%
70'000	13.3%	10.5–15.1%	11.9%
80'000	14.5%	11.5–16.3%	13.1%
90'000	15.3%	12.2–17.3%	14.1%
100'000	16.3%	13–18.4%	15.3%
110'000	17.2%	13.8–19.3%	16.3%
120'000	17.9%	14.4–20.1%	17.2%
130'000	18.7%	15.1–20.9%	18.1%
140'000	19.5%	15.7–21.8%	19%
150'000	20.2%	16.4–22.5%	19.7%
175'000	21.8%	17.8–24.3%	21.6%
200'000	23.2%	19.1–25.8%	23.2%
225'000	24.4%	20.1–27%	24.6%
250'000	25.5%	21.1–28.2%	25.8%
275'000	26.4%	21.9–29.1%	26.8%
300'000	27.1%	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 °C

Precipitation 1991–20201'384 mm

9 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

623 m

Mean elevation

515 m

Relief

206 m

Mean slope

6.9°

Flat share

37.1%

South-facing

37.6%

Above 2000 m

0.0%

Relief 206 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

23.6 GWh/yr

Roofs + façades

31.1 GWh/yr

≈ households powered

5'300

24 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

27.3 Rp./kWh

Energy

10.89 Rp./kWh

Grid usage

11.25 Rp./kWh

Levies + grid surcharge

3.4 Rp./kWh

27.3 Rp./kWh9.6443.61

Canton median 30.42 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator BKW Energie 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.

2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026

Housing

BFS

Vacancy rate

4.33 %

Avg. rooms

4.3

Dwellings

1'085

Built before 194620.6%

Built since 200125.7%

4.33 %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 76 min · Car 48 min

AgglomerationPT 26 min · Car 18 min

Remoteness 21/104 in canton

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

Municipality

Wikidata · CC0

Websiteriedholz.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities2'319 #40 SO · #892 CH Families & children20.3% #40 SO · #1033 CH Age structure23.7% #33 SO · #555 CH Women share51.4% #9 SO · #258 CH Foreign residents11.4% #75 SO · #1594 CH Population density324/km² #49 SO · #732 CH Tax burden16'343 #32 SO · #1469 CH Taxes115% #34 SO Warmest municipalities9 °C #85 SO · #1371 CH Sunniest municipalities40.6% #43 SO · #1569 CH Rainiest municipalities1'384 mm #8 SO · #375 CH Voter turnout56.3% #25 SO · #897 CH Against Switzerland7% #66 SO · #1371 CH Aligned with Switzerland93% #12 SO · #95 CH SVP strongholds23.4% #93 SO · #1640 CH SP strongholds19.7% #19 SO · #487 CH Centre strongholds11.2% #92 SO · #1094 CH FDP strongholds24.5% #18 SO · #249 CH GLP strongholds8.3% #10 SO · #532 CH Green strongholds9.3% #32 SO · #663 CH Largest by area7.2 km² #40 SO · #1226 CH Highest municipalities474 m #54 SO · #1359 CH Remotest municipalities76 min #21 SO · #859 CH Best-connected municipalities76 min #86 SO · #1260 CH Highest peaks623 m #59 SO · #1449 CH Highest-lying municipalities515 m #50 SO · #1366 CH Greatest vertical range206 m #57 SO · #1337 CH Steepest municipalities6.9° #57 SO · #1254 CH Solar potential24 GWh #36 SO · #890 CH Cheapest electricity27.3 Rp./kWh #24 SO · #755 CH Most expensive electricity27.3 Rp./kWh #93 SO · #1365 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Niederwil SO4523 Riedholz4533

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Riedholz?: Riedholz has 2 postal codes: 4523, 4533.
What is the tax rate in Riedholz?: The municipal tax multiplier of Riedholz is 115% (2026); canton SO levies 104%.
How much tax do you pay in Riedholz?: A single person without children pays about 16'343 CHF income tax in Riedholz on 100'000 CHF gross income (federal, cantonal, municipal), rank 32 of 104 in canton SO. Source: ESTV (2026).
How many residents does Riedholz have?: Riedholz has 2'319 residents (2025).
How many foreign residents live in Riedholz?: Riedholz has 265 foreign residents, a share of 11.43% (2025).

Map

OpenStreetMap

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