 It is located in the Parkersburg High School-Washington Avenue Historic District, listed on the National Register of Historical Places in 1992.PHS continued to serve as the only high school in Parkersburg, at one point holding a population of around three thousand students.It was only after graduating a class of eleven hundred thirty seven (1137) students in 1965 that a second public school, Parkersburg South High School, was founded in 1967.