Member Districts CESA #12 Districts Located in northern Wisconsin on the South Shore of Lake Superior, CESA #12 is a nonprofit government educational agency proudly serving 17 public school districts. School District of Ashland Bayfield School District Butternut School District Chequamegon School District Drummond Area School District Hayward Community School District Hurley School District School District of Maple Mellen School District Mercer School District Northwood School District School District of Phillips School District of Solon Springs South Shore School District School District of Superior School District of Washburn School District of Winter