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 towards the west, the London Borough of Harrow and the London Borough of Brent to the north, the London Borough of Hammersmith and Fulham to the east and also the London Borough of Hounslow to the south. It covers a total area of about 21.44 square miles.
In line with population estimates from the middle of 2014, the borough has a permanent population of around 342118 individuals. This makes it the 3rd largest London Borough in population, and 11th biggest in size, covering part of west London plus a small part of northwest London. The local authority is Ealing London Borough Council.
The town is served by many 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 consists of six volumes. Ealing is also the key setting for 'The Sarah Jane Adventures', being the location of Sarah Jane Smith's residence. Within the borough are two garden suburbs, Brentham Garden Suburb and Bedford Park.