Located in the Dorchester-Milton Lower Mills Industrial District, it serves the MBTA's Mattapan Line.

[9][10] Conversion of the section between Ashmont and Mattapan to an interurban-style streetcar line by the Boston Elevated Railway began in 1926.

[11] On March 18, 1968, the Neponset River flooded the line at Milton station after a 7-inch (180 mm) rainfall.

[11][14] The stairs to the station from Adams Street – the only entrance not via private parking lots - were closed in 2018 due to deteriorating condition.

The MBTA did not repair the stairs because doing so would trigger a larger accessibility renovation of the station, likely including an elevator.

[18] Despite the objections of town officials, including an appeal to state governor Maura Healey, the MBTA demolished the staircase on March 6–9, 2023.