Washington High School is a public high school in Phoenix, Arizona, United States. It serves students from grades 9-12. Washington is a part of the Glendale Union High School District, and opened in 1955 with its first graduating class in 1956.AcademicsWashington High School offers ten Advanced Placement classes, including Biology, Calculus AB and BC, English Literature, French, Japanese Language and Culture, Spanish, Studio Art, US Government, US History and AP World History. It has received the 'Excelling' label by the Arizona Board of Education every year for the past 3 years.After school clubsWHS's Interact club is one of the largest and most active Interact clubs in the world. The club does community service activities at least twice a week. It is sponsored by the Sun City Rotary club.