Twin Falls High School is a public secondary school in Twin Falls, Idaho, one of two traditional high schools operated by the Twin Falls School District.School historyTwin Falls High School was founded in 1907. Citizens passed a bond in 1909 to construct the high school building and a supplemental bond in 1911 to complete construction. Formal dedication of the original high school, located on Shoshone Street next to the Twin Falls'' County Courthouse, occurred in February 1912.The current Twin Falls High School on Filer Avenue opened in September 1954. The original high school building became Twin Falls Junior High School (now O'Leary Middle School). The original building was condemned and torn down in the early 1980s after O'Leary moved to a new location in 1979.AthleticsUntil 2009, TFHS was among the largest high schools in the state, classified as 5A by the IHSAA. With the opening of Canyon Ridge High School in western Twin Falls in August 2009, both schools were classified as 4A . A crosstown rivalry between TFHS and CRHS has since developed.With the move to down to 4A in 2009, TFHS also changed conferences. It is currently a member of the Great Basin Conference, competing against Canyon Ridge, Burley, Jerome, Minico, and Wood River, all located in south central Idaho's Magic Valley.
