Thorp School District No. 400 is a public school system based in Thorp, Kittitas County, Washington. It provides fully accredited academic, athletic and award-winning extracurricular programs for all grades K-12, as well as a pre-school program. Thorp High School was formally established as a fully accredited institution in 1895, although the Thorp School District itself dates to 1873 and is the oldest continuously operating school system in Kittitas County.