Ellenborough is a suburb of the town of Maryport, located in the Allerdale District in the county of Cumbria, England. Ellenborough is a residential area and has a post office, a school and a few places of worship. It takes its name from the River Ellen and is only about a mile away from the estuary, which goes out into the Irish Sea. The population of the electoral ward taken at the 2011 census was 3,810.