Mortlake railway station is in the London Borough of Richmond upon Thames, in south London, and is in Travelcard Zone 3. It is 8 miles 21 chains (13.3 km) down the line from London Waterloo. The station and all trains serving it are operated by South Western Railway. Postal district and boundary changes over many years mean that Mortlake now serves the area known as East Sheen as well as the area of Mortlake, both of which share the SW14 postcode. Mortlake is the closest station to the finish of the Oxford-Cambridge University Boat Race.