The London Borough of Ealing is a London Borough in west London, England, and forms 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 the Municipal Borough of Acton. The London Borough of Ealing borders the London Borough of Hillingdon to the west, the London Borough of Harrow along with the London Borough of Brent towards the north, the London Borough of Hammersmith and Fulham to the east and the London Borough of Hounslow towards the south. It covers a total area of around 21.44 square miles.
As outlined by population estimates from the middle of 2014, the borough includes a permanent population of about 342118 inhabitants. This makes it the third biggest London Borough in population, and 11th largest in size, covering a part of west London in addition to a small a part of northwest London. Its administrative centre is Ealing Broadway. Other main 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 much of the action in Robert Rankin's trilogy comedic novels, The Brentford Trilogy, which currently is made up of six volumes. Ealing is also the key setting for 'The Sarah Jane Adventures', being the place of Sarah Jane Smith's residence. Inside the borough are two garden suburbs, Brentham Garden Suburb and Bedford Park.