London borough

The London boroughs are the current 32 local authority districts that together with the City of London make up the administrative area of Greater London, England; each is governed by a London borough council. They are a form of unitary authority. The present London boroughs were all created at the same time as Greater London on 1 April 1965 by the London Government Act 1963 (c. 33) and are a type of local government district. Twelve were designated as Inner London boroughs and twenty as Outer London boroughs. The City of London, the historic centre, is a separate ceremonial county and sui generis local government district that functions quite differently from a London borough. However, the two counties together comprise the administrative area of Greater London as well as the London Region, all of which is also governed by the Greater London Authority, under the Mayor of London.

The London boroughs have populations of between 150,000 and 400,000. Inner London boroughs tend to be smaller, in both population and area, and more densely populated than Outer London boroughs. The London boroughs were created by combining groups of former local government units. A review undertaken between 1987 and 1992 led to a number of relatively small alterations in borough boundaries. London borough councils provide the majority of local government services (schools, waste management, social services, libraries), in contrast to the strategic Greater London Authority, which has limited authority over all of Greater London.