What is the postal code of Sempach?

Sempach has 2 postal codes: 6024, 6204.

What is the tax rate in Sempach?

The municipal tax multiplier of Sempach is 165% (2026); canton LU levies 145%.

How much tax do you pay in Sempach?

A single person without children pays about 12'209 CHF income tax in Sempach on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 79 in canton LU. Source: ESTV (2026).

How many residents does Sempach have?

Sempach has 4'404 residents (2025).

How many foreign residents live in Sempach?

Sempach has 438 foreign residents, a share of 9.95% (2025).

Switzerland · Canton LU · Wahlkreis Sursee

Sempach

6024–6204

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

Demographics

BFS · 2025

Women

2'238 50.8%

Men

2'166 49.2%

Children & youth (0–19)

978 22.2%

Swiss citizens

3'966 90.1%

Foreign residents

438 10.0%

Population density

377 pop./km²

0–19 · 978 · 22.2%20–64 · 2'507 · 56.9%65+ · 919 · 20.9%

Foreign residents 10.0%0%64.0%

Population change 2025: +24 (+0.6%) · 40 births · 18 deaths · net migration +8

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 Sempach

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 Wahlkreis Sursee: 22.1% Yes

24.7% YesNo 75.3%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Wahlkreis Sursee: 28.7% Yes

20.2% YesNo 79.8%

27.09.2026Erweiterung und Umnutzung Kantonsschule ReussbühlCantonal LU● Accepted · 67.6% YesDistrict Wahlkreis Sursee: 63.6% Yes

74.8% YesNo 25.2%

27.09.2026Weiterentwicklung Standortförderung. Änderung Gesetz über die Wirtschaftsförderung und die RegionalpolitikCantonal LU● Accepted · 65.1% YesDistrict Wahlkreis Sursee: 67.1% Yes

68.4% YesNo 31.6%

27.09.2026Erweiterte Ladenöffnungszeiten für Selbstbedienungsgeschäfte. Änderung Ruhetags- und LadenschlussgesetzCantonal LU● Accepted · 55.2% YesDistrict Wahlkreis Sursee: 54.1% Yes

56.5% YesNo 43.5%

27.09.2026StichfrageCantonal LU● Rejected · 41.2% YesDistrict Wahlkreis Sursee: 41.8% Yes

42.1% YesNo 57.9%

27.09.2026Gegenentwurf zur Volksinitiative «Gegen Fan-Gewalt»Cantonal LU● Accepted · 74.8% YesDistrict Wahlkreis Sursee: 74.4% Yes

76.7% YesNo 23.3%

27.09.2026Volksinitiative «Gegen Fan-Gewalt»Cantonal LU● Accepted · 52.8% YesDistrict Wahlkreis Sursee: 53.6% Yes

54.2% YesNo 45.8%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Wahlkreis Sursee: 59.7% Yes

57.1% YesNo 42.9%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Wahlkreis Sursee: 52.5% Yes

39.7% YesNo 60.3%

All federal votes →

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

Politics

National Council election 2023

Mitte34.0% · strongest party

Mitte34.0%

SVP21.3%

FDP15.7%

SP12.3%

GLP7.5%

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

Taxes 2026

ESTV

Municipal tax multiplier165%

Cantonal tax multiplier145%

165%LU range 90%240%

Tax rank 17 of 79 in canton Lucerne

Tax burden

Single, 100'000 CHF gross income

12'209 CHF(12.2%)

Rank 16 of 79 in the canton · 339 of 2110 in Switzerland

Median canton 13'053 CHF · median Switzerland 15'290 CHF

Cheapest Meggen 9'679 CHF · most expensive Luthern 14'739 CHF

Income tax as % of gross income

100'000 CHF:12'209 CHF(~12.2%)

SempachCanton range LucerneSwitzerland median

Show data table

Gross income	Sempach	Lucerne	Switzerland median
40'000	5.3%	4.2–6.5%	5.4%
50'000	7.5%	5.8–9.2%	7.8%
60'000	9.2%	7.2–11.3%	10.5%
70'000	10.2%	8–12.4%	11.9%
80'000	10.9%	8.6–13.3%	13.1%
90'000	11.5%	9–13.9%	14.1%
100'000	12.2%	9.7–14.7%	15.3%
110'000	12.8%	10.3–15.4%	16.3%
120'000	13.4%	10.7–16%	17.2%
130'000	13.9%	11.2–16.6%	18.1%
140'000	14.4%	11.7–17.2%	19%
150'000	14.9%	12.1–17.7%	19.7%
175'000	16.2%	13.3–19.1%	21.6%
200'000	17.3%	14.3–20.3%	23.2%
225'000	18.4%	15.3–21.5%	24.6%
250'000	19.4%	16.2–22.6%	25.8%
275'000	20.2%	17–23.5%	26.8%
300'000	20.9%	17.6–24.2%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–20209 °C

Precipitation 1991–20201'212 mm

9 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

743 m

Mean elevation

560 m

Relief

239 m

Mean slope

3.8°

Flat share

67.2%

South-facing

23.2%

Above 2000 m

0.0%

Relief 239 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

34.3 GWh/yr

Roofs + façades

45.6 GWh/yr

≈ households powered

7'600

Per inhabitant

7'797 kWh/yr

34 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

24.72 Rp./kWh

Energy

11.5 Rp./kWh

Grid usage

8.55 Rp./kWh

Levies + grid surcharge

3.2 Rp./kWh

24.72 Rp./kWh10.5645.88

Canton median 24.72 Rp./kWhSwiss median 26.53 Rp./kWh

Network operator CKW 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 2

Standard model, deductible 300527 CHF/mo

Ø premium in canton Lucerne363 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Sempach →Canton Lucerne →Premiums explained →

Premiums are set per canton and premium region. This area lies in premium region 2 of canton Lucerne. Shown is the average adult premium paid across the whole canton Lucerne (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

0.91 %

Second homes

8.3 %

Avg. rooms

4.2

Dwellings

1'974

Built before 194612.1%

Built since 200130.9%

0.91 %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

2'081

Workplaces

324

Services share

63 %

Jobs by sector: Primary 103 (4.9%) · Secondary 667 (32.1%) · Tertiary 1'311 (63.0%)

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

Agriculture

BFS · 2025

Farms

Organic share

7.4 %

Farmland

569 ha

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

Accessibility

ARE · NPVM

Major centrePT 86 min · Car 54 min

AgglomerationPT 27 min · Car 15 min

Remoteness 45/79 in canton

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

Municipality

Wikidata · CC0

BFS municipality number1102

Websitesempach.ch ↗

DistrictWahlkreis Sursee

Wikidata · continuously updated, retrieved 24.09.2026

Where Sempach ranks

Largest municipalities4'404 #27 LU · #513 CH Growing municipalities0.6% #40 LU · #1071 CH Shrinking municipalities0.6% #40 LU · #1033 CH Jobs per resident0.47 #38 LU · #607 CH Families & children22.2% #31 LU · #494 CH Age structure20.9% #18 LU · #1057 CH Women share50.8% #9 LU · #501 CH Foreign residents10% #60 LU · #1704 CH Population density377/km² #23 LU · #645 CH Tax burden12'209 #18 LU · #342 CH Taxes165% #17 LU Warmest municipalities9 °C #47 LU · #1353 CH Sunniest municipalities41% #38 LU · #1408 CH Rainiest municipalities1'212 mm #29 LU · #672 CH Voter turnout64.9% #10 LU · #208 CH Against Switzerland11.8% #52 LU · #1108 CH Aligned with Switzerland88.2% #22 LU · #332 CH SVP strongholds21.3% #74 LU · #1730 CH SP strongholds12.3% #10 LU · #1251 CH Centre strongholds34% #33 LU · #189 CH FDP strongholds15.7% #43 LU · #760 CH GLP strongholds7.5% #15 LU · #654 CH Green strongholds6.3% #16 LU · #1253 CH Largest by area11.7 km² #44 LU · #838 CH Highest municipalities547 m #43 LU · #1017 CH Second homes8.3% #44 LU · #1558 CH Organic farming7.4% #59 LU · #1400 CH Best-connected municipalities86 min #37 LU · #1477 CH Remotest municipalities86 min #45 LU · #628 CH Highest peaks743 m #47 LU · #1100 CH Highest-lying municipalities560 m #48 LU · #1178 CH Greatest vertical range239 m #46 LU · #1177 CH Steepest municipalities3.8° #71 LU · #1778 CH Solar potential34 GWh #37 LU · #582 CH Solar potential per capita7'797 kWh #62 LU · #1511 CH Cheapest electricity24.72 Rp./kWh #46 LU · #384 CH Most expensive electricity24.72 Rp./kWh #36 LU · #1725 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Hildisrieden6024 Sempach6204

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Sempach?: Sempach has 2 postal codes: 6024, 6204.
What is the tax rate in Sempach?: The municipal tax multiplier of Sempach is 165% (2026); canton LU levies 145%.
How much tax do you pay in Sempach?: A single person without children pays about 12'209 CHF income tax in Sempach on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 79 in canton LU. Source: ESTV (2026).
How many residents does Sempach have?: Sempach has 4'404 residents (2025).
How many foreign residents live in Sempach?: Sempach has 438 foreign residents, a share of 9.95% (2025).

Map

OpenStreetMap

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