Chartiers Valley High School is a public school that was established in 1959 and is physically located in Collier Township, Allegheny County, Pennsylvania, United States. The school's post-office address is Bridgeville, PA however. The school district serves Collier Township, Bridgeville Borough, Scott Township and Heidelberg Borough. The school district is named for Chartiers Creek, which flows through and/or forms part of the border for all four regions the district serves (Bridgeville, Collier, Heidelberg, and Scott). The creek itself is named after Pierre Chartier.