[1][2] The Western standard gauge line to Adelaide runs immediately west of the station.
[3] At the end of 1913, the station was moved 400 metres down the line, in conjunction with the establishment of a crossing loop on the single track.
[2] The relocation of Geelong Grammar School to its new site on 8 January 1914 helped to increase the station's importance.
[4] In the early 1950s, Corio's role was boosted by the construction of the Shell Geelong refinery, with its associated sidings, immediately adjacent to the station.
When duplication was extended to Lara on 9 September 1981, a new island platform and station building were provided.