What is the postal code of Ziefen?

The postal code of Ziefen is 4417.

What is the tax rate in Ziefen?

The municipal tax multiplier of Ziefen is 59% (2026); canton BL levies 100%.

How much tax do you pay in Ziefen?

A single person without children pays about 16'173 CHF income tax in Ziefen on 100'000 CHF gross income (federal, cantonal, municipal), rank 33 of 86 in canton BL. Source: ESTV (2026).

How many residents does Ziefen have?

Ziefen has 1'740 residents (2025).

How many foreign residents live in Ziefen?

Ziefen has 205 foreign residents, a share of 11.78% (2025).

Switzerland · Canton BL

Ziefen

4417

BL CANTON4417

Residents

1'740

Area

7.8 km²

Population density

223 pop./km²

Elevation

430 m a.s.l.

Terrain up to

756 m a.s.l.

Tax multiplier

59%

Postal codes

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

Demographics

BFS · 2025

Women

872 50.1%

Men

868 49.9%

Children & youth (0–19)

386 22.2%

Swiss citizens

1'535 88.2%

Foreign residents

205 11.8%

Population density

223 pop./km²

0–19 · 386 · 22.2%20–64 · 961 · 55.2%65+ · 393 · 22.6%

Foreign residents 11.8%0%64.0%

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

Vote results for Ziefen

BFS

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

47.3% YesNo 52.7%

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

42.7% YesNo 57.3%

14.06.2026Neue Ortsdurchfahrt BirsfeldenCantonal BL● Accepted · 56.2% Yes

54.6% YesNo 45.4%

14.06.2026Gesetzesinitiative Energiepolitik nur mit der BevölkerungCantonal BL● Rejected · 44.4% Yes

39.4% YesNo 60.6%

14.06.2026Verfassungsinitiative Zämme in EuropaCantonal BL● Accepted · 53.7% Yes

52.3% YesNo 47.7%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

41.9% YesNo 58.1%

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

30.1% YesNo 70.0%

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

32.2% YesNo 67.8%

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

38.8% YesNo 61.2%

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

71.5% YesNo 28.5%

All federal votes →

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

Politics

National Council election 2023

SP31.0% · strongest party

SP31.0%

SVP27.6%

GRÜNE13.0%

FDP8.5%

GLP6.3%

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

Taxes 2026

ESTV

Municipal tax multiplier59%

Cantonal tax multiplier100%

59%BL range 45%72%

Tax rank 40 of 86 in canton Basel-Landschaft

Tax burden

Single, 100'000 CHF gross income

16'173 CHF(16.2%)

Rank 33 of 86 in the canton · 1368 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:16'173 CHF(~16.2%)

ZiefenCanton range Basel-LandschaftSwitzerland median

Show data table

Gross income	Ziefen	Basel-Landschaft	Switzerland median
40'000	6.2%	5.7–6.7%	5.4%
50'000	8.5%	7.8–9.2%	7.8%
60'000	10.6%	9.7–11.4%	10.5%
70'000	12.3%	11.3–13.2%	11.9%
80'000	13.7%	12.6–14.7%	13.1%
90'000	14.8%	13.7–16%	14.1%
100'000	16.2%	14.9–17.4%	15.3%
110'000	17.4%	16–18.6%	16.3%
120'000	18.4%	17–19.7%	17.2%
130'000	19.3%	17.9–20.7%	18.1%
140'000	20.3%	18.7–21.7%	19%
150'000	21.1%	19.5–22.5%	19.7%
175'000	23%	21.3–24.5%	21.6%
200'000	24.6%	22.8–26.2%	23.2%
225'000	25.9%	24.1–27.6%	24.6%
250'000	27.1%	25.3–28.8%	25.8%
275'000	28.1%	26.3–29.9%	26.8%
300'000	29%	27.1–30.8%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 31.08.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–202010.2 °C

Precipitation 1991–20201'059 mm

10.2 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

756 m

Mean elevation

510 m

Relief

356 m

Mean slope

12.7°

Flat share

15.3%

South-facing

14.9%

Above 2000 m

0.0%

Relief 356 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

14.8 GWh/yr

Roofs + façades

19.8 GWh/yr

≈ households powered

3'300

15 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

30.2 Rp./kWh

Energy

11.74 Rp./kWh

Grid usage

14.31 Rp./kWh

Levies + grid surcharge

2.64 Rp./kWh

30.2 Rp./kWh9.6443.61

Canton median 31.98 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator EBL (Genossenschaft Elektra Baselland)

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

0 %

Avg. rooms

4.4

Dwellings

753

Built before 194631.2%

Built since 200124.3%

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 31.08.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026

Accessibility

ARE · NPVM

Major centrePT 49 min · Car 33 min

AgglomerationPT 49 min · Car 33 min

Remoteness 37/86 in canton

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

Municipality

Wikidata · CC0

Websiteziefen.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities1'740 #34 BL · #1061 CH Families & children22.2% #4 BL · #498 CH Age structure22.6% #57 BL · #751 CH Women share50.1% #43 BL · #870 CH Foreign residents11.8% #66 BL · #1567 CH Population density223/km² #47 BL · #967 CH Tax burden16'173 #40 BL · #1375 CH Taxes59% #40 BL Warmest municipalities10.2 °C #35 BL · #333 CH Sunniest municipalities41.7% #24 BL · #1181 CH Rainiest municipalities1'059 mm #22 BL · #1333 CH Voter turnout60.5% #7 BL · #434 CH Against Switzerland18% #16 BL · #694 CH Aligned with Switzerland82% #35 BL · #743 CH SVP strongholds27.6% #72 BL · #1423 CH SP strongholds31% #4 BL · #35 CH Centre strongholds5.8% #73 BL · #1701 CH FDP strongholds8.5% #71 BL · #1544 CH GLP strongholds6.3% #40 BL · #904 CH Green strongholds13% #11 BL · #246 CH Largest by area7.8 km² #23 BL · #1163 CH Highest municipalities430 m #53 BL · #1706 CH Remotest municipalities49 min #37 BL · #1673 CH Best-connected municipalities49 min #49 BL · #435 CH Highest peaks756 m #28 BL · #1070 CH Highest-lying municipalities510 m #43 BL · #1387 CH Greatest vertical range356 m #32 BL · #885 CH Steepest municipalities12.7° #38 BL · #716 CH Solar potential15 GWh #34 BL · #1249 CH Cheapest electricity30.2 Rp./kWh #22 BL · #1657 CH Most expensive electricity30.2 Rp./kWh #36 BL · #422 CH

Postal codes (1)

swisstopo

4417

Ziefen

Localities

swisstopo · 1

Ziefen4417

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Ziefen?: The postal code of Ziefen is 4417.
What is the tax rate in Ziefen?: The municipal tax multiplier of Ziefen is 59% (2026); canton BL levies 100%.
How much tax do you pay in Ziefen?: A single person without children pays about 16'173 CHF income tax in Ziefen on 100'000 CHF gross income (federal, cantonal, municipal), rank 33 of 86 in canton BL. Source: ESTV (2026).
How many residents does Ziefen have?: Ziefen has 1'740 residents (2025).
How many foreign residents live in Ziefen?: Ziefen has 205 foreign residents, a share of 11.78% (2025).

Map

OpenStreetMap

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