[5][6] The name was suggested by local councillor Sydney Plowman, who was originally from Sleaford.

[5][6] On 13 November 1957, an electric locomotive shunting in the yard derailed, blocking both lines for almost two hours.

On 4 May 2010, as part of the 2010/2011 State Budget, $83.7 million was allocated to upgrade Seaford to a premium station, along with nineteen others.

[16] Following a 2019 commitment by the Morrison government, the station was due to receive an upgraded passenger car park.

[17] In October 2022, it was announced that Seaford would be elevated as part of a project to remove seven level crossings on the line.