Kodomonokuni Station was opened on July 24, 1936, as Susaki Station (洲崎駅, Susaki-eki). The station was closed in 1944 due to World War II, and reopened on October 1, 1952, at a new location to the west of the original station. It was relocated again in October 1974 and renamed to its present name on October 10, 1976. It has been unattended since 1952.
Passenger statistics
In fiscal 2017, the station was used by an average of 77 passengers daily (boarding passengers only).[1]
