Scandia, formerly New Scandia Township, is in the northeast corner of Washington County, Minnesota. It includes most of William O'Brien State Park, and is bordered on its southeast corner by Marine on St. Croix. The eastern boundary of the city is the St. Croix River, which is the Minnesota-Wisconsin state line. On the west, Scandia is bounded by the city of Forest Lake. In 1990, New Scandia Township had a population of 3197.