What is the postal code of Basel?

Basel has 11 postal codes: 4001, 4031, 4051, 4052, 4053, 4054, 4055, 4056, 4057, 4058, 4059.

What is the tax rate in Basel?

The municipal tax multiplier of Basel is 50% (2026); canton BS levies 50%.

How much tax do you pay in Basel?

A single person without children pays about 14'659 CHF income tax in Basel on 100'000 CHF gross income (federal, cantonal, municipal), rank 3 of 3 in canton BS. Source: ESTV (2026).

How many residents does Basel have?

Basel has 180'097 residents (2025).

How many foreign residents live in Basel?

Basel has 72'884 foreign residents, a share of 40.47% (2025).

Switzerland · Canton BS

Basel

4001–4059

BS CANTON4001 4031 4051 4052+7 PLZ

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

Demographics

BFS · 2025

Women

91'687 50.9%

Men

88'410 49.1%

Children & youth (0–19)

30'923 17.2%

Swiss citizens

107'213 59.5%

Foreign residents

72'884 40.5%

Population density

7'551 pop./km²

0–19 · 30'923 · 17.2%20–64 · 115'151 · 63.9%65+ · 34'023 · 18.9%

Foreign residents 40.5%0%64.0%

Population change 2025: +2'526 (+1.4%) · 1'667 births · 1'680 deaths · net migration +2'395

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

Neighbourhoods

BFS · 2024

Statistical city quarters from BFS City Statistics — available for 10 Swiss cities only, not nationwide.

St.Johann

18'899residents

Median age: 39.6
Foreign: 43.3%
Area / person: 36 m²

Gundeldingen

18'562residents

Median age: 39.7
Foreign: 42.8%
Area / person: 39 m²

Iselin

17'468residents

Median age: 39.8
Foreign: 41.0%
Area / person: 37 m²

Matthäus

14'569residents

Median age: 39.4
Foreign: 50.8%
Area / person: 36 m²

Bachletten

13'511residents

Median age: 45
Foreign: 23.9%
Area / person: 46 m²

St.Alban

12'260residents

Median age: 43.7
Foreign: 38.4%
Area / person: 47 m²

Am Ring

10'899residents

Median age: 41.8
Foreign: 41.1%
Area / person: 45 m²

Hirzbrunnen

9'573residents

Median age: 42.8
Foreign: 27.7%
Area / person: 39 m²

Bruderholz

9'508residents

Median age: 45.8
Foreign: 25.1%
Area / person: 48 m²

Breite

9'107residents

Median age: 42.2
Foreign: 38.1%
Area / person: 39 m²

Rosental

7'415residents

Median age: 36.5
Foreign: 57.5%
Area / person: 35 m²

Gotthelf

6'878residents

Median age: 44.2
Foreign: 30.6%
Area / person: 41 m²

Klybeck

6'842residents

Median age: 40.4
Foreign: 54.3%
Area / person: 33 m²

Wettstein

5'543residents

Median age: 42
Foreign: 34.0%
Area / person: 45 m²

Vorstädte

4'649residents

Median age: 45.4
Foreign: 42.9%
Area / person: 50 m²

Clara

4'206residents

Median age: 42.1
Foreign: 51.9%
Area / person: 38 m²

Kleinhüningen

2'729residents

Median age: 42.8
Foreign: 51.0%
Area / person: 33 m²

Grossbasel Altstadt

2'537residents

Median age: 47.8
Foreign: 32.1%
Area / person: 52 m²

Kleinbasel Altstadt

2'318residents

Median age: 42.9
Foreign: 41.4%
Area / person: 43 m²

STATPOP 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Vote results for Basel

BFS

38.5% YesNo 61.5%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% Yes

19.4% YesNo 80.6%

27.09.2026Kantonale Initiative «Für die Einrichtung eines Sammlungszentrums im Rundhofgebäude der Messe Basel (Sammlungszentrum-Volksinitiative)»Cantonal BS● Rejected · 13.2% Yes

13.7% YesNo 86.3%

27.09.2026Kantonale Initiative «JA zur Durchsetzung von Recht und Ordnung – NEIN zum Chaotentum (Anti-Chaoten-Initiative)»Cantonal BS● Rejected · 35.7% Yes

33.9% YesNo 66.1%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% Yes

35.9% YesNo 64.1%

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

25.3% YesNo 74.7%

14.06.2026Stichfrage zu Initiative und GegenvorschlagCantonal BS● Rejected · 28.9% Yes

29.7% YesNo 70.3%

14.06.2026Gegenvorschlag des Grossen Rates vom 7. Januar 2026Cantonal BS● Accepted · 67.8% Yes

67.9% YesNo 32.1%

14.06.2026Kantonale Initiative «Für die Wiederherstellung und Wiederaufforstung der ehemaligen Klybeckinsel (Klybeckinsel-Volksinitiative)»Cantonal BS● Rejected · 38.2% Yes

38.8% YesNo 61.2%

14.06.2026Grossratsbeschluss vom 7. Januar 2026 betreffend Finanzierung der weiteren Arbeit im Zusammenhang mit dem Herzstück und dem Bahnknoten BaselCantonal BS● Accepted · 56.2% Yes

56.5% YesNo 43.5%

All federal votes →

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

Politics

National Council election 2023

SP33.7% · strongest party

SP33.7%

GRÜNE18.5%

SVP12.6%

LPS9.9%

GLP9.0%

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

Taxes 2026

ESTV

Municipal tax multiplier50%

Cantonal tax multiplier50%

50%BS range 37.5%50%

Tax rank 3 of 3 in canton Basel-City

Tax burden

Single, 100'000 CHF gross income

14'659 CHF(14.7%)

Rank 3 of 3 in the canton · 959 of 2110 in Switzerland

Median canton 13'363 CHF · median Switzerland 15'290 CHF

Cheapest Bettingen 13'039 CHF · most expensive Basel 14'659 CHF

Income tax as % of gross income

100'000 CHF:14'659 CHF(~14.7%)

BaselCanton range Basel-CitySwitzerland median

Show data table

Gross income	Basel	Basel-City	Switzerland median
40'000	4.9%	4.3–4.9%	5.4%
50'000	7.8%	6.9–7.8%	7.8%
60'000	9.9%	8.7–9.9%	10.5%
70'000	11.5%	10.1–11.5%	11.9%
80'000	12.7%	11.2–12.7%	13.1%
90'000	13.6%	12.1–13.6%	14.1%
100'000	14.7%	13–14.7%	15.3%
110'000	15.6%	13.9–15.6%	16.3%
120'000	16.3%	14.6–16.3%	17.2%
130'000	17%	15.2–17%	18.1%
140'000	17.7%	15.8–17.7%	19%
150'000	18.3%	16.4–18.3%	19.7%
175'000	19.7%	17.7–19.7%	21.6%
200'000	20.9%	18.9–20.9%	23.2%
225'000	21.9%	19.9–21.9%	24.6%
250'000	22.8%	20.8–22.8%	25.8%
275'000	23.8%	21.6–23.8%	26.8%
300'000	24.9%	22.7–24.9%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–202011.2 °C

Precipitation 1991–2020802 mm

11.2 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

368 m

Mean elevation

271 m

Relief

123 m

Mean slope

2.1°

Flat share

87.6%

South-facing

2.3%

Above 2000 m

0.0%

Relief 123 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

545.7 GWh/yr

Roofs + façades

713.1 GWh/yr

≈ households powered

121'300

Per inhabitant

3'030 kWh/yr

546 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

33.42 Rp./kWh

Energy

10.89 Rp./kWh

Grid usage

11.23 Rp./kWh

Levies + grid surcharge

10.09 Rp./kWh

33.42 Rp./kWh10.5645.88

Canton median 33.42 Rp./kWhSwiss median 26.53 Rp./kWh

Network operator IWB Industrielle Werke Basel

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 300704 CHF/mo

Ø premium in canton Basel-City523 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Basel →Canton Basel-City →Premiums explained →

Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Basel-City (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

0.95 %

Second homes

10.8 %

Avg. rooms

2.9

Dwellings

105'190

Built before 194637.2%

Built since 20018.6%

0.95 %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

196'083

Workplaces

17'499

Services share

83.3 %

Jobs by sector: Primary 60 (0.0%) · Secondary 32'590 (16.6%) · Tertiary 163'433 (83.3%)

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

Agriculture

BFS · 2025

Farms

Organic share

25 %

Farmland

35 ha

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

Accessibility

ARE · NPVM

Major centrePT 11 min · Car 8 min

AgglomerationPT 11 min · Car 8 min

Remoteness 3/3 in canton

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

Municipality

Wikidata · CC0

BFS municipality number2701

Head of governmentBeat Jans · Sozialdemokratische Partei der Schweiz

Websitebs.ch ↗

Wikidata · continuously updated, retrieved 24.09.2026

Where Basel ranks

Largest municipalities180'097 #1 BS · #3 CH Growing municipalities1.4% #1 BS · #572 CH Shrinking municipalities1.4% #3 BS · #1537 CH Jobs per resident1.09 #1 BS · #73 CH Families & children17.2% #3 BS · #1795 CH Age structure18.9% #3 BS · #1460 CH Women share50.9% #2 BS · #447 CH Foreign residents40.5% #1 BS · #76 CH Population density7'551/km² #1 BS · #6 CH Tax burden14'659 #3 BS · #959 CH Taxes50% #3 BS Warmest municipalities11.2 °C #1 BS · #34 CH Sunniest municipalities42.1% #1 BS · #1113 CH Rainiest municipalities802 mm #3 BS · #2048 CH Voter turnout58.4% #3 BS · #785 CH Against Switzerland26.5% #1 BS · #165 CH Aligned with Switzerland73.5% #3 BS · #1281 CH SVP strongholds12.6% #3 BS · #2056 CH SP strongholds33.7% #1 BS · #21 CH Centre strongholds5.5% #3 BS · #1738 CH FDP strongholds6.2% #3 BS · #1769 CH GLP strongholds9% #2 BS · #431 CH Green strongholds18.5% #1 BS · #36 CH Largest by area23.9 km² #1 BS · #400 CH Highest municipalities260 m #3 BS · #2080 CH Second homes10.8% #1 BS · #1087 CH Organic farming25% #1 BS · #450 CH Best-connected municipalities11 min #1 BS · #3 CH Remotest municipalities11 min #3 BS · #2108 CH Highest peaks368 m #3 BS · #2102 CH Highest-lying municipalities271 m #3 BS · #2105 CH Greatest vertical range123 m #3 BS · #1717 CH Steepest municipalities2.1° #3 BS · #1992 CH Solar potential546 GWh #1 BS · #3 CH Solar potential per capita3'030 kWh #3 BS · #2092 CH Cheapest electricity33.42 Rp./kWh #1 BS · #2036 CH Most expensive electricity33.42 Rp./kWh #1 BS · #69 CH

Postal codes (11)

swisstopo

Localities

swisstopo · 1

Basel4001 4031 4051 4052 4053 4054 4055 4056 4057 4058 4059

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Basel?: Basel has 11 postal codes: 4001, 4031, 4051, 4052, 4053, 4054, 4055, 4056, 4057, 4058, 4059.
What is the tax rate in Basel?: The municipal tax multiplier of Basel is 50% (2026); canton BS levies 50%.
How much tax do you pay in Basel?: A single person without children pays about 14'659 CHF income tax in Basel on 100'000 CHF gross income (federal, cantonal, municipal), rank 3 of 3 in canton BS. Source: ESTV (2026).
How many residents does Basel have?: Basel has 180'097 residents (2025).
How many foreign residents live in Basel?: Basel has 72'884 foreign residents, a share of 40.47% (2025).

Map

OpenStreetMap