Hillingdon is an area of Uxbridge within the London Borough of Hillingdon, centred 14.2 miles (22.8 km) west of Charing Cross. It was an ancient parish in Middlesex that included the market town of Uxbridge. During the 1920s the civil parish bore a rapid, planned increase in population and housing, and was absorbed by Uxbridge Urban District in 1929. It has formed part of Greater London since 1965. Much of Hillingdon has lasting, albeit minor, administrative effect as the current Hillingdon East ward for electing councillors to Hillingdon London Borough Council. In November 2010, the ward had a recorded population of 12,403. History Toponymy The name Hillingdon appears in the Domesday Book (1086) as Hillendone, possibly meaning "hill of a man named Hille". The name could also mean 'hill of a woman named Hilda'. Local government Hillingdon was an ancient parish, and had within it the chapelry of Uxbridge, which became a separate civil parish in 1866. When a local board of health was created for Uxbridge, the western part of Hillingdon parish was included within it. Under the Local Government Act 1894, Hillingdon parish was divided in two along the boundary of the board of health district. Hillingdon West became, with Uxbridge, part of the Uxbridge Urban District. Hillingdon East, now governed by the Hillingdon East Parish Council, became part of the Uxbridge Rural District. Uxbridge Rural District and the parish council were abolished in 1928, with the Hillingdon East parish being added to the Uxbridge Urban District. Both Hillingdon East and Hillingdon West parishes were abolished in 1938 and added to Uxbridge parish. In 1965, under the London Government Act 1963, Hillingdon became the name of the westernmost borough of Greater London. Urban development The A40 (Western Avenue) was rerouted in the early 1990s to run slightly north of its original route, thereby allowing traffic to flow without interruption at the junction of Hillingdon Circus. Hillingdon tube station was required to be demolished in order for the new road to be constructed, and a new station was opened further south along the line in 1994, winning the Underground Station of the Year award for that year. Parliamentary constituency Hillingdon is a traditional Conservative stronghold lying within the Uxbridge and South Ruislip constituency, represented since 2015 by Boris Johnson. Before that, John Randall MP had represented the constituency since 1997, following the death of fellow Conservative Sir Michael Shersby.