Mitcham Junction is a National Rail station served by Southern and Thameslink trains.

The line still has sharp curves at either end of the station where the junctions were located and speed is limited to 30 miles per hour (48 km/h).

National Rail services at Mitcham Junction are operated by Southern and Thameslink using Class 377 and 700 EMUs.

The typical off-peak service in trains per hour is:[8] During the peak hours, additional services between London Victoria and Epsom also call at the station, as well as a single return journey between Sutton and London Bridge.

On Saturday evenings (after approximately 18:45) and on Sundays, there is no service south of Dorking to Horsham.