Maine School Administrative District 9 (MSAD9) is a regional school district in Franklin County, Maine. It services children grades K-12 with one high school (Mount Blue High School), one middle school and four elementary schools from Wilton, Maine; Farmington, Maine; Weld, Maine; Temple, Maine; Chesterville, Maine; New Vineyard, Maine; Industry, Maine; New Sharon, Maine; and Vienna, Maine.