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Municipality · canton of St. Gallen

Gossau (SG)

District of St. Gallen. Municipality number 3443 in the federal register.

residents, 2025
18’943
km² of land
27.51
residents per km²
689
District
St. Gallen
Residents 2025
18’943+1.7% on 2024
Foreign residents
23.8%4’514 people
Private households 2025
8’504
Land area
27.51 km²without lakes
Building insurance
Compulsory, with Gebäudeversicherung St.Gallen (the canton’s own insurer).0.27 ‰ of the insured value a year, plus the 5% federal stamp duty on the premium: CHF 278.50 per CHF 1 million.Beschluss sGS 873.13 Ziff. 1, read 12.10.2026; Feuerschutzverordnung sGS 871.11 Art. 59, read 12.10.2026
Mortgage lenders
10 of 10lenders on MEconomy with no stated limit that excludes this canton
Postcodes
9015, 9030, 9100, 9200, 9204, 9212

What a household pays here

Health insurance and electricity for your household in Gossau (SG), against where you live today.

Sources: population and foreign residents on 31.12.2025 and private households 2025, Federal Statistical Office (STATPOP), on today’s municipal boundaries; municipalities, districts and land area without lakes, swisstopo swissTLMRegio; postcodes, swisstopo’s official locality register. Updated each September.