T.F. North High School dates back to 1917 when Wentworth High School was organized and housed only Calumet City students. On April 12, 1924, the Thornton Fractional Township District was organized, and Thornton Fractional Township High School opened in March of 1926. On December 20, 1933, Thornton Fractional Township High School was destroyed by fire. The main part of the present building was rebuilt on the same site and reopened on February 7, 1936.