Sangū Line
Tsu Station opened on November 4, 1891, as a station on the Tsu spur line of the privately owned Kansai Railway. The line was nationalized on October 1, 1907, becoming the Sangū Line of the Japanese Government Railways (JGR) on October 12, 1909. On April 3, 1932, the Sangū Express Electric Railway began operations at Tsu Station. This line underwent various changes in ownership, eventually becoming the Kintetsu Nagoya Line in 1944. The station was transferred to the control of the Japan National Railways (JNR) Kisei Main Line on July 15, 1959. The JNR Ise Line began operations on September 1, 1973. The station was absorbed into the JR Central network upon the privatization of the (JNR) on April 1, 1987, with the Ise Line spun off to the private sector a few days earlier.