[5] Initially opened as Rail Motor Stopping Place 77, the station was given its current name of Lalor on 27 August 1952.

[5] Lalor station opened in October 1949, and was provided as part of a garden suburb created by the Peter Lalor Home Building Cooperative Society, which was formed by a group of ex-servicemen to provide cheap homes during a time of high demand and shortage of materials post World War II.

1 track to the main line were provided at the down end of the station, effectively forming a crossing loop between Thomastown and Epping.

[15] This arrangement existed until November 2011, when the line between Keon Park and Epping was duplicated,[5][16] with the points at both ends of the station abolished.

[19] Announced as part of a $21.9 million package in the 2022/23 Victorian State Budget, Lalor, alongside other stations, will receive accessibility upgrades, the installation of CCTV, and platform shelters.