Demographics
BFS · 2023Women
2'115 50.8%
Men
2'045 49.2%
Children & youth (0–19)
959 23.1%
Swiss citizens
3'960 90.4%
Foreign residents
420 9.6%
0–19 · 959 · 23.1%20–64 · 2'348 · 56.4%65+ · 853 · 20.5%
Foreign residents 9.6%0%61.6%
Source: BFS/OFS · retrieved 24.07.2026
Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 69.6%57.1% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 70.8%39.7% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 66.2%56.6% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 66.1%23.8% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023Mitte34.0% · strongest party
Mitte34.0%
SVP21.3%
FDP15.7%
SP12.3%
GLP7.5%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier165%
Cantonal tax multiplier145%
165%CH range 25%525%
Tax rank 16 of 79 in canton LucerneSource: ESTV · retrieved 20.07.2026
Climate
Mosen · 10.7 kmAnnual mean temperature 202510.1 °C
Precipitation 2025913 mm
10.1 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websitesempach.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (2)
swisstopoNearby municipalities
swisstopoFrequently 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 many residents does Sempach have?
- Sempach has 4'160 residents (2023).
- Which canton is Sempach in?
- Sempach is located in canton LU.