The London Borough of Ealing is a London Borough in west London, England, and forms a part of Outer London. The London borough was formed in 1965 by the merging the area of the Municipal Borough of Ealing, the Municipal Borough of Southall and also the Municipal Borough of Acton. The London Borough of Ealing borders the London Borough of Hillingdon towards the west, the London Borough of Harrow plus the London Borough of Brent to the north, the London Borough of Hammersmith and Fulham towards the east plus the London Borough of Hounslow to the south. It covers a total area of about 21.44 square miles.
As recorded in population estimates from the middle of 2014, the borough has a permanent population of about 342118 individuals. This makes it the third biggest London Borough in population, and 11th biggest in size, covering part of west London as well as a small a part of northwest London. Its administrative centre is Ealing Broadway. Other major centres include Acton, Greenford and Southall.
The town is served by several National Rail and London Underground stations. Together with Brentford, the London Borough of Ealing is the setting for a great deal of the action in Robert Rankin's trilogy comedic novels, The Brentford Trilogy, which currently includes six volumes. Ealing is also the main setting for 'The Sarah Jane Adventures', being the place of Sarah Jane Smith's home. Within the borough are two garden suburbs, Brentham Garden Suburb and Bedford Park.