What is the postal code of Oberwil?

The postal code of Oberwil is 4104.

What is the tax rate in Oberwil?

The municipal tax multiplier of Oberwil is 50% (2026); canton BL levies 100%.

How much tax do you pay in Oberwil?

A single person without children pays about 15'354 CHF income tax in Oberwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 6 of 86 in canton BL. Source: ESTV (2026).

How many residents does Oberwil have?

Oberwil has 11'459 residents (2025).

How many foreign residents live in Oberwil?

Oberwil has 2'792 foreign residents, a share of 24.37% (2025).

Switzerland · Canton BL · Bezirk Arlesheim

Oberwil

4104

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

Demographics

BFS · 2025

Women

5'993 52.3%

Men

5'466 47.7%

Children & youth (0–19)

2'321 20.3%

Swiss citizens

8'667 75.6%

Foreign residents

2'792 24.4%

Population density

1'452 pop./km²

0–19 · 2'321 · 20.3%20–64 · 6'385 · 55.7%65+ · 2'753 · 24.0%

Foreign residents 24.4%0%64.0%

Population change 2025: +29 (+0.3%) · 73 births · 103 deaths · net migration +53

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 Oberwil

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 Arlesheim: 26.8% Yes

24.9% YesNo 75.1%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Arlesheim: 23.2% Yes

21.4% YesNo 78.6%

27.09.2026Gesetzesinitiative Fairer Kompromiss bei der Mehrwertabgabe: StichfrageCantonal BL● Rejected · 36.3% YesDistrict Bezirk Arlesheim: 34.5% Yes

34.3% YesNo 65.8%

27.09.2026Gesetzesinitiative Fairer Kompromiss bei der Mehrwertabgabe: GegenvorschlagCantonal BL● Rejected · 43.9% YesDistrict Bezirk Arlesheim: 46.0% Yes

47.2% YesNo 52.8%

27.09.2026Gesetzesinitiative Fairer Kompromiss bei der MehrwertabgabeCantonal BL● Rejected · 31.7% YesDistrict Bezirk Arlesheim: 30.5% Yes

31.6% YesNo 68.4%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Arlesheim: 50.8% Yes

54.5% YesNo 45.5%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Arlesheim: 39.2% Yes

36.6% YesNo 63.4%

14.06.2026Neue Ortsdurchfahrt BirsfeldenCantonal BL● Accepted · 56.2% YesDistrict Bezirk Arlesheim: 58.3% Yes

60.3% YesNo 39.7%

14.06.2026Gesetzesinitiative Energiepolitik nur mit der BevölkerungCantonal BL● Rejected · 44.4% YesDistrict Bezirk Arlesheim: 41.9% Yes

40.4% YesNo 59.6%

14.06.2026Verfassungsinitiative Zämme in EuropaCantonal BL● Accepted · 53.7% YesDistrict Bezirk Arlesheim: 58.0% Yes

59.4% YesNo 40.6%

All federal votes →

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

Politics

National Council election 2023

SVP23.7% · strongest party

SVP23.7%

SP22.6%

FDP18.7%

Mitte13.6%

GRÜNE10.4%

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

Taxes 2026

ESTV

Municipal tax multiplier50%

Cantonal tax multiplier100%

50%BL range 45%72%

Tax rank 6 of 86 in canton Basel-Landschaft

Tax burden

Single, 100'000 CHF gross income

15'354 CHF(15.4%)

Rank 6 of 86 in the canton · 1061 of 2110 in Switzerland

Median canton 16'264 CHF · median Switzerland 15'290 CHF

Cheapest Pfeffingen 14'899 CHF · most expensive Waldenburg 17'356 CHF

Income tax as % of gross income

100'000 CHF:15'354 CHF(~15.4%)

OberwilCanton range Basel-LandschaftSwitzerland median

Show data table

Gross income	Oberwil	Basel-Landschaft	Switzerland median
40'000	5.9%	5.7–6.7%	5.4%
50'000	8%	7.8–9.2%	7.8%
60'000	10%	9.7–11.4%	10.5%
70'000	11.6%	11.3–13.2%	11.9%
80'000	13%	12.6–14.7%	13.1%
90'000	14.1%	13.7–16%	14.1%
100'000	15.4%	14.9–17.4%	15.3%
110'000	16.5%	16–18.6%	16.3%
120'000	17.5%	17–19.7%	17.2%
130'000	18.4%	17.9–20.7%	18.1%
140'000	19.3%	18.7–21.7%	19%
150'000	20.1%	19.5–22.5%	19.7%
175'000	21.9%	21.3–24.5%	21.6%
200'000	23.4%	22.8–26.2%	23.2%
225'000	24.8%	24.1–27.6%	24.6%
250'000	26%	25.3–28.8%	25.8%
275'000	26.9%	26.3–29.9%	26.8%
300'000	27.8%	27.1–30.8%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–202010.8 °C

Precipitation 1991–2020912 mm

10.8 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

424 m

Mean elevation

348 m

Relief

133 m

Mean slope

4.3°

Flat share

68.2%

South-facing

13.9%

Above 2000 m

0.0%

Relief 133 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

62.1 GWh/yr

Roofs + façades

86.8 GWh/yr

≈ households powered

13'800

Per inhabitant

5'422 kWh/yr

62 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

31.21 Rp./kWh

Energy

13.45 Rp./kWh

Grid usage

13.78 Rp./kWh

Levies + grid surcharge

2.91 Rp./kWh

31.21 Rp./kWh10.5645.88

Canton median 31.21 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

Premium regionRegion 1

Standard model, deductible 300680 CHF/mo

Ø premium in canton Basel-Landschaft479 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Oberwil →Canton Basel-Landschaft →Premiums explained →

Premiums are set per canton and premium region. This area lies in premium region 1 of canton Basel-Landschaft. Shown is the average adult premium paid across the whole canton Basel-Landschaft (2024, BAG) — a region-specific average is not available in the cantonal data.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE

Vacancy rate

0.86 %

Second homes

9.7 %

Avg. rooms

3.9

Dwellings

5'574

Built before 19468.1%

Built since 200126.1%

0.86 %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

4'072

Workplaces

701

Services share

90.5 %

Jobs by sector: Primary 58 (1.4%) · Secondary 327 (8.0%) · Tertiary 3'687 (90.5%)

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

Agriculture

BFS · 2025

Farms

Organic share

15.4 %

Farmland

432 ha

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

Accessibility

ARE · NPVM

Major centrePT 20 min · Car 15 min

AgglomerationPT 20 min · Car 15 min

Remoteness 84/86 in canton

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

Municipality

Wikidata · CC0

BFS municipality number2771

Websiteoberwil.ch ↗

DistrictBezirk Arlesheim

Wikidata · continuously updated, retrieved 24.09.2026

Where Oberwil ranks

Largest municipalities11'459 #8 BL · #145 CH Growing municipalities0.3% #53 BL · #1258 CH Shrinking municipalities0.3% #34 BL · #850 CH Jobs per resident0.36 #29 BL · #1003 CH Families & children20.3% #23 BL · #1034 CH Age structure24% #37 BL · #516 CH Women share52.3% #4 BL · #97 CH Foreign residents24.4% #22 BL · #584 CH Population density1'452/km² #10 BL · #129 CH Tax burden15'354 #6 BL · #1061 CH Taxes50% #6 BL Warmest municipalities10.8 °C #16 BL · #128 CH Sunniest municipalities42.2% #9 BL · #1093 CH Rainiest municipalities912 mm #76 BL · #1915 CH Voter turnout55.6% #34 BL · #1135 CH Against Switzerland6.9% #40 BL · #1374 CH Aligned with Switzerland93.1% #10 BL · #100 CH SVP strongholds23.7% #81 BL · #1622 CH SP strongholds22.6% #30 BL · #291 CH Centre strongholds13.6% #15 BL · #920 CH FDP strongholds18.7% #4 BL · #543 CH GLP strongholds8.6% #9 BL · #497 CH Green strongholds10.4% #26 BL · #509 CH Largest by area7.9 km² #21 BL · #1150 CH Highest municipalities305 m #79 BL · #2051 CH Second homes9.7% #50 BL · #1248 CH Organic farming15.4% #42 BL · #863 CH Best-connected municipalities20 min #3 BL · #21 CH Remotest municipalities20 min #84 BL · #2089 CH Highest peaks424 m #77 BL · #2073 CH Highest-lying municipalities348 m #74 BL · #2071 CH Greatest vertical range133 m #75 BL · #1676 CH Steepest municipalities4.3° #81 BL · #1693 CH Solar potential62 GWh #7 BL · #225 CH Solar potential per capita5'422 kWh #72 BL · #1915 CH Cheapest electricity31.21 Rp./kWh #74 BL · #1941 CH Most expensive electricity31.21 Rp./kWh #14 BL · #193 CH

Postal codes (1)

swisstopo

4104

Oberwil BL

Localities

swisstopo · 1

Oberwil BL4104

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Oberwil?: The postal code of Oberwil is 4104.
What is the tax rate in Oberwil?: The municipal tax multiplier of Oberwil is 50% (2026); canton BL levies 100%.
How much tax do you pay in Oberwil?: A single person without children pays about 15'354 CHF income tax in Oberwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 6 of 86 in canton BL. Source: ESTV (2026).
How many residents does Oberwil have?: Oberwil has 11'459 residents (2025).
How many foreign residents live in Oberwil?: Oberwil has 2'792 foreign residents, a share of 24.37% (2025).

Map

OpenStreetMap

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