The station is located at 3750 West 147th Street (IL 83) Midlothian is 18.4 miles (29.6 km) away from LaSalle Street Station, the northern terminus of the Rock Island District line.

[2] In Metra's zone-based fare structure, Midlothian is located in zone 2.

As of 2018, Midlothian is the 56th busiest of Metra's 236 non-downtown stations, with an average of 938 weekday boardings.

Midlothian is located at grade level and consists of two side platforms which serve two tracks.

There is a station house on the inbound platform where tickets can be purchased.