Demographics
BFS · 2023Women
6'151 49.4%
Men
6'305 50.6%
Children & youth (0–19)
2'492 20.0%
Swiss citizens
8'568 68.1%
Foreign residents
4'013 31.9%
0–19 · 2'492 · 20.0%20–64 · 7'588 · 60.9%65+ · 2'376 · 19.1%
Foreign residents 31.9%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 58.8%61.1% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 60.3%60.4% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 54.3%37.0% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 53.9%19.7% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP39.1% · strongest party
SVP39.1%
Mitte23.5%
FDP9.4%
SP9.2%
GRÜNE8.3%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier107%
Cantonal tax multiplier105%
107%CH range 25%525%
Tax rank 25 of 75 in canton St. GallenSource: ESTV · retrieved 20.07.2026
Climate
Oberriet / Kriessern · 6.4 kmAnnual mean temperature 202510.6 °C
Precipitation 2025983 mm
10.6 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Head of governmentRuedi Mattle · Grünliberale Partei
Websitealtstaetten.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (6)
swisstopoNearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Altstätten?
- Altstätten has 6 postal codes: 9058, 9450, 9452, 9453, 9463, 9464.
- What is the tax rate in Altstätten?
- The municipal tax multiplier of Altstätten is 107% (2026); canton SG levies 105%.
- How many residents does Altstätten have?
- Altstätten has 12'456 residents (2023).
- Which canton is Altstätten in?
- Altstätten is located in canton SG.