[3] Deer Park station opened as Kororoit on 2 April 1884, along with the Serviceton line, and was renamed Deer Park in 1899, by which time the station had a three road yard, passenger platform on the southern track, a goods platform on the northern track, and an interlocked signal box.

Being on a single track railway, it served as a crossing loop for trains, which remained until 1913, when the signal box was abolished.

[5] The Nobel siding (later ICIANZ) was closed in 1955 and, in 1976, the line from Sunshine to Deer Park West Junction was duplicated,[3][6] with the current island platform also provided.

[10][11] The year prior, during major construction works, the station underwent a minor upgrade as part of the project.

First announced by the Andrews State Government in 2018, the station is set to be integrated into the metropolitan railway network, as part of the Western Rail Plan.

[12] As part of the Regional Rail Revival project, 18 km (11 mi) of track was duplicated between Deer Park West and Melton.