High Quality Content by WIKIPEDIA articles! 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. According to 2000 federal census data, it serves a resident population of 16,531. The district residents` 2009 per capita income was $15,358, while the median family income was $39,303 a year. Per Midd-West district officials, in school year 2005-06, the Midd-West School District provided basic educational services to 2,375 pupils. It employed: 186 teachers, 134 full-time and part-time support personnel, and 15 administrators.