
City · St. Gallen
Unterwasser is a village in the Toggenburg region of the canton of St. Gallen, Switzerland, situated at the confluence of the two streams forming the upper Thur. Formerly part of Wildhaus municipality, it has since 2010 been part of Wildhaus-Alt St. Johann by merger of Wildhaus and Alt St. Johann. It is a relatively small ski resort, and many of its trails are shared with nearby Alt st. Johan.
Fibre
The rental vacancy rate is 1.23%, 10% below the cantonal average (1.37 %). The municipal tax multiplier (Steuerfuss) is 118%, 4% above the cantonal average (113 %). Median taxable income is CHF 44'300, 28% below the Swiss median (CHF 61'929). Unterwasser has 2'614 residents (2025).
Source: Swiss Federal Statistical Office (BFS).
3 apartments & houses are currently listed to buy in Unterwasser on Homematch. The selection updates throughout the day as agencies publish new listings.
The median asking price in Unterwasser is around CHF 8'839 per m². For an 80 m² property that's roughly CHF 707'143 — actual prices vary widely by neighbourhood, age and condition.
Unterwasser is located in the canton of St. Gallen.
Unterwasser has approximately 2'614 residents.
The municipal tax multiplier (Steuerfuss) in Unterwasser is 118% of the cantonal base rate. Note: this is a multiplier of the cantonal income tax, not an effective tax rate.
Price on request
5.5 rooms · 115 m²
9658 Wildhaus

Price on request
6.5 rooms · 156 m²
9658 Wildhaus
2.8 kmCHF 890'000
3.5 rooms · 100 m²
9658 Wildhaus
CHF 415'000
3.5 rooms · 48 m²
Ahornstrasse 2, 9658 Wildhaus
CHF 380'000
2.5 rooms · 42 m²
Ahornstrasse 2, 9658 Wildhaus
3.0 kmCHF 840'000
3.5 rooms · 87 m²
Hauptstrasse 122, 9658 Wildhaus
3.1 kmCHF 865'000
2.5 rooms · 70 m²
Hauptstrasse 124, 9658 Wildhaus