Unity School District is a kindergarten through 12th grade school district located in between Balsam Lake, Wisconsin and Milltown, Wisconsin on Highway 46. Communities served by Unity School District Apple River, Wisconsin Balsam Lake, Wisconsin Centuria, Wisconsin Eureka, Wisconsin Georgetown, Wisconsin Johnstown, Wisconsin Laketown, Wisconsin Milltown, Wisconsin St. Croix Falls, Wisconsin References External links Unity School District Elementary School Middle School High School School districts in Wisconsin Education in Polk County, Wisconsin