Arcadia High School is a four-year comprehensive secondary school located on a 40-acre (16 ha) site in Arcadia, California, United States. It is part of the Arcadia Unified School District. The high school was opened in 1952. The incoming freshman classes consist of students that feed in from Arcadia's three middle schools: First Avenue Middle School, Richard Henry Dana Middle School, and Foothills Middle School. Arcadia High School has a GreatSchools rating of 9 out of 10.