Midd-West School District (MWSD) is a midsized, rural, public school district located in the borough of Middleburg in Snyder County, Pennsylvania, in the United States. The Midd-West School District encompasses approximately 226 square miles (590 km2). Midd-West School District serves: Beavertown, McClure, Beaver Springs, Adams Township, Beaver Township, Center Township, Franklin Township, Middlecreek Township, Perry Township, Spring Township, West Beaver Township and West Perry Township. According to 2000 federal census data, it served a resident population of 16,531. Per the US Census Bureau by 2010, the District's population increased to 17,470 people.