Claim: Koboro Station opened on September 30, 1943 and its classification changed in December of 1967, and was later given the status of half station.
Evidence: The station opened on September 30, 1943 as Koboro Yard (Koboro shingōjō). The classification was changed on October 1, 1967 to Koboro Provisional Stop (Koboro kari-jōkōjō). It was given the status of full station and named Koboro Station on April 1, 1987 when JR Hokkaido was established.