Polk County: Official site. Departments and services policies, forms and documents; calendar; county officials.Polk County - Explore Wisconsin: Calendar of current events and links to local businesses and attractions.Polk County Vacation Information: Directory of area features and attractions.Unity School District: The district covers Balsam Lake, Georgetown, Eureka, Johnstown, Laketown, St. Croix Falls, Apple River and the villages of Balsam Lake, Centuria and Milltown. Event information, community resources, and library information.