Stone Lake is an unincorporated census-designated place in Sawyer and Washburn counties, Wisconsin, United States. Stone Lake is located on the eastern shore of Stone Lake and along Wisconsin Highway 70, 12 miles west-northwest of Couderay. The Sawyer County portion of the community is located in the town of Sand Lake, while the Washburn County portion is located in the town of Stone Lake. As of the 2010 census, its population is 178.