What is the postal code of Bättwil?

Bättwil has 2 postal codes: 4105, 4112.

What is the tax rate in Bättwil?

The municipal tax multiplier of Bättwil is 122% (2026); canton SO levies 104%.

How much tax do you pay in Bättwil?

A single person without children pays about 16'830 CHF income tax in Bättwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 56 of 104 in canton SO. Source: ESTV (2026).

How many residents does Bättwil have?

Bättwil has 1'185 residents (2025).

How many foreign residents live in Bättwil?

Bättwil has 190 foreign residents, a share of 16.03% (2025).

Switzerland · Canton SO

Bättwil

4105–4112

SO CANTON4105 4112

Residents

1'185

Area

1.7 km²

Population density

710 pop./km²

Elevation

360 m a.s.l.

Tax multiplier

122%

Postal codes

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

Demographics

BFS · 2025

Women

603 50.9%

Men

582 49.1%

Children & youth (0–19)

225 19.0%

Swiss citizens

995 84.0%

Foreign residents

190 16.0%

Population density

710 pop./km²

0–19 · 225 · 19.0%20–64 · 703 · 59.3%65+ · 257 · 21.7%

Foreign residents 16.0%0%64.0%

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

Vote results for Bättwil

BFS

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

53.2% YesNo 46.8%

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

47.1% YesNo 52.9%

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

62.6% YesNo 37.4%

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

61.4% YesNo 38.7%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

52.1% YesNo 47.9%

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 76.2%

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

38.9% YesNo 61.1%

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

35.3% YesNo 64.7%

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

74.3% YesNo 25.7%

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

43.2% YesNo 56.8%

All federal votes →

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

Politics

National Council election 2023

SVP35.3% · strongest party

SVP35.3%

Mitte20.1%

SP18.9%

FDP9.9%

GRÜNE6.3%

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

Taxes 2026

ESTV

Municipal tax multiplier122%

Cantonal tax multiplier104%

122%SO range 65%145%

Tax rank 57 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

16'830 CHF(16.8%)

Rank 56 of 104 in the canton · 1761 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:16'830 CHF(~16.8%)

BättwilCanton range SolothurnSwitzerland median

Show data table

Gross income	Bättwil	Solothurn	Switzerland median
40'000	8%	6.1–8.8%	5.4%
50'000	10.4%	7.9–11.4%	7.8%
60'000	12.3%	9.4–13.5%	10.5%
70'000	13.8%	10.5–15.1%	11.9%
80'000	14.9%	11.5–16.3%	13.1%
90'000	15.8%	12.2–17.3%	14.1%
100'000	16.8%	13–18.4%	15.3%
110'000	17.7%	13.8–19.3%	16.3%
120'000	18.4%	14.4–20.1%	17.2%
130'000	19.2%	15.1–20.9%	18.1%
140'000	20%	15.7–21.8%	19%
150'000	20.7%	16.4–22.5%	19.7%
175'000	22.4%	17.8–24.3%	21.6%
200'000	23.8%	19.1–25.8%	23.2%
225'000	25.1%	20.1–27%	24.6%
250'000	26.1%	21.1–28.2%	25.8%
275'000	27%	21.9–29.1%	26.8%
300'000	27.7%	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 1991–202010.7 °C

Precipitation 1991–2020940 mm

10.7 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

526 m

Mean elevation

374 m

Relief

197 m

Mean slope

6.6°

Flat share

70.1%

South-facing

3.6%

Above 2000 m

0.0%

Relief 197 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

10.6 GWh/yr

Roofs + façades

13.4 GWh/yr

≈ households powered

2'400

11 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

31.98 Rp./kWh

Energy

13.73 Rp./kWh

Grid usage

14.26 Rp./kWh

Levies + grid surcharge

2.92 Rp./kWh

31.98 Rp./kWh9.6443.61

Canton median 30.42 Rp./kWhSwiss median 27.7 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.

2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026

Housing

BFS

Vacancy rate

1.84 %

Avg. rooms

4.2

Dwellings

544

Built before 194614.0%

Built since 200122.1%

1.84 %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 34 min · Car 24 min

AgglomerationPT 34 min · Car 24 min

Remoteness 103/104 in canton

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

Municipality

Wikidata · CC0

Websitebaettwil.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities1'185 #67 SO · #1333 CH Families & children19% #65 SO · #1439 CH Age structure21.7% #61 SO · #910 CH Women share50.9% #16 SO · #440 CH Foreign residents16% #46 SO · #1192 CH Population density710/km² #19 SO · #351 CH Tax burden16'830 #56 SO · #1761 CH Taxes122% #57 SO Warmest municipalities10.7 °C #1 SO · #153 CH Sunniest municipalities42% #2 SO · #1130 CH Rainiest municipalities940 mm #101 SO · #1840 CH Voter turnout51.4% #62 SO · #1545 CH Against Switzerland7% #64 SO · #1369 CH Aligned with Switzerland93% #10 SO · #93 CH SVP strongholds35.3% #28 SO · #950 CH SP strongholds18.9% #22 SO · #543 CH Centre strongholds20.1% #43 SO · #515 CH FDP strongholds9.9% #100 SO · #1404 CH GLP strongholds4.9% #69 SO · #1217 CH Green strongholds6.3% #58 SO · #1252 CH Largest by area1.7 km² #98 SO · #2044 CH Highest municipalities360 m #102 SO · #2006 CH Remotest municipalities34 min #103 SO · #1964 CH Best-connected municipalities34 min #2 SO · #136 CH Highest peaks526 m #74 SO · #1797 CH Highest-lying municipalities374 m #103 SO · #2048 CH Greatest vertical range197 m #60 SO · #1387 CH Steepest municipalities6.6° #60 SO · #1305 CH Solar potential11 GWh #73 SO · #1510 CH Cheapest electricity31.98 Rp./kWh #62 SO · #1868 CH Most expensive electricity31.98 Rp./kWh #21 SO · #194 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Bättwil4112 Biel-Benken BL4105

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Bättwil?: Bättwil has 2 postal codes: 4105, 4112.
What is the tax rate in Bättwil?: The municipal tax multiplier of Bättwil is 122% (2026); canton SO levies 104%.
How much tax do you pay in Bättwil?: A single person without children pays about 16'830 CHF income tax in Bättwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 56 of 104 in canton SO. Source: ESTV (2026).
How many residents does Bättwil have?: Bättwil has 1'185 residents (2025).
How many foreign residents live in Bättwil?: Bättwil has 190 foreign residents, a share of 16.03% (2025).

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