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 as well as the London Borough of Brent towards the north, the London Borough of Hammersmith and Fulham towards the east and the London Borough of Hounslow towards the south. It covers a total area of about 21.44 square miles.
According to population estimates from the middle of 2014, the borough features a permanent population of about 342118 people. This makes it the third largest London Borough in population, and 11th biggest in size, covering a part of west London along with a small part of northwest London. The local authority is Ealing London Borough Council.
The town is served by numerous National Rail and London Underground stations. In addition to Brentford, the London Borough of Ealing is the setting for a great deal of the action in Robert Rankin's series of comedic novels, The Brentford Trilogy, which currently includes six volumes. Ealing is also the main setting for 'The Sarah Jane Adventures', being the location of Sarah Jane Smith's house. Within the borough are two garden suburbs, Brentham Garden Suburb and Bedford Park.