Sandgate is located in the southwestern corner of the state, bounded on the west by New York, the north by Rupert, the east by Manchester and the south by Arlington. There is no maintained road to the north or east. Approach is generally from Route 313 in West Arlington. Originating off Route 313, the Sandgate Road is about 12 miles from Route 22 in Cambridge, NY or 4 miles from Route 7A in Arlington. There are through roads in West Sandgate, emerging either in Rupert, VT or Salem, New York.