Nishio Station was opened on October 30, 1911, as a station on the privately held Nishio Railway. It was relocated to its present location on October 1, 1928. On December 21, 1926, the Nishio Railway merged with the Aichi Electric Railway, which was acquired by the Meitetsu Group on August 1, 1935. The station building was completed in December 1973. The tracks were elevated in July 1989.
Passenger statistics
In fiscal 2017, the station was used by an average of 5263 passengers daily (boarding passengers only).[1]