Upminster is an interchange station serving the town of Upminster in the London Borough of Havering, Greater London. It is on the London, Tilbury and Southend line (LTSR), 15 miles 20 chains (24.5 km) down the line from London Fenchurch Street; it is the eastern terminus of the District line on the London Underground; and it is the eastern terminus of the Romford to Upminster Line on the London Overground network. Upminster is the easternmost station on the London Underground network as well as the easternmost National Rail station in London.