Pasco Senior High School, located at 1108 N. 10th Avenue in Pasco, Washington, is the largest high school in the Tri-Cities of Washington. Its mascot is the Bulldog and its colors are purple and white. Pasco High has a very diverse student body and a strong football program. It was the only High School in Pasco until 2009 when Chiawana High School, in West Pasco opened its doors. Pasco High is one of Washington state's largest high schools; it is classified as a 4A school (the classification for the largest schools in that state) and has an enrollment of more than 1,800 students.