Sandy High School (formerly known as Sandy Union High School) is a public high school in the northwest United States, located in Sandy, Oregon, east of Portland. Originally located in a two-story schoolhouse in 1917, the high school was given its own standalone brick structure in 1923 to accommodate a growing student body as the Portland metropolitan area and surrounding cities expanded in population; that building is used now as Cedar Ridge Middle School. Since 1997, Sandy High School has been operated by the Oregon Trail School District, and is the district's only high school.