Crestwood High School is a ninth through twelfth grade, suburban, public high school located on Route 309 in Mountain Top, Pennsylvania, United States. It is the only high school in the Crestwood School District (Pennsylvania), which encompasses an area of 110 square miles (280 km²) with a combined population of 19,383. According to the National Center for Education Statistics, in 2010, Crestwood High School reported an enrollment of 1,062 pupils in grades 9th through 12th, with 194 pupils eligible for a federal free or reduced price lunch.