Demographics
BFS · 2023Women
1'608 51.4%
Men
1'521 48.6%
Children & youth (0–19)
502 16.0%
Swiss citizens
2'345 75.0%
Foreign residents
781 25.0%
0–19 · 502 · 16.0%20–64 · 1'741 · 55.6%65+ · 886 · 28.3%
Foreign residents 25.0%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 50.9%52.3% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 50.9%55.5% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 56.1%41.2% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 56.2%26.8% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP26.1% · strongest party
SVP26.1%
Mitte16.7%
FDP16.6%
GRÜNE10.6%
SP9.7%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier85%
Cantonal tax multiplier100%
85%CH range 25%525%
Tax rank 53 of 99 in canton TicinoSource: ESTV · retrieved 20.07.2026
Climate
Lugano · 9.7 kmAnnual mean temperature 202514 °C
Precipitation 20251'877 mm
14 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websitetresa.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (6)
swisstopoNearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Tresa?
- Tresa has 6 postal codes: 6980, 6988, 6989, 6995, 6997, 6998.
- What is the tax rate in Tresa?
- The municipal tax multiplier of Tresa is 85% (2026); canton TI levies 100%.
- How many residents does Tresa have?
- Tresa has 3'129 residents (2023).
- Which canton is Tresa in?
- Tresa is located in canton TI.