Hughson Union High School was created in 1911.
Klamath Union High School was created in 1901.
Anderson Union High School was created in 1909.
Union Pines High School was created in 1964.
Mingus Union High School was created in 1958.
Redondo Union High School was created in 1905.
Sanger Union High School was created in 1901.
Tulare Union High School was created in 1890.
Berne Union High School was created in 1915.
Hamilton Union High School was created in 1917.
Patagonia Union High School was created in 1926.
Wasco Union High School was created in 1915.
Yuma Union High School was created in 1909.