Ganterschwil had an area, as of 2006, of 8.1 km² (3.1 sq mi).
 Of this area, 63.8% is used for agricultural purposes, while 26.2% is forested.
 Of the rest of the land, 7% is settled (buildings or roads) and the remainder (3%) is non-productive (rivers or lakes).

The former municipality is located in the Toggenburg Wahlkreis in a high plateau between the Thur and Neckar rivers.
 It consists of the village of Ganterschwil and the hamlets of Äwil, Anzenwil, Bleiken, Ötschwil and Tobel as well as scattered individual farm houses.
Ganterschwil had an area, as of 2006, of 8.1 km² (3.1 sq mi).  Of this area, 63.8% is used for agricultural purposes, while 26.2% is forested.  Of the rest of the land, 7% is settled (buildings or roads) and the remainder (3%) is non-productive (rivers or lakes).
The former municipality is located in the Toggenburg Wahlkreis in a high plateau between the Thur and Neckar rivers.  It consists of the village of Ganterschwil and the hamlets of Äwil, Anzenwil, Bleiken, Ötschwil and Tobel as well as scattered individual farm houses.
Ganterschwil