Greater London is an administrative area and ceremonial county in southeast England that covers the United Kingdom capital of London. The administrative area was created on 1 April 1965 and has been the London region since 1 April 1994. It comprises the City of London and 32 London boroughs, of which 12 are Inner London and 20 Outer London boroughs. The ceremonial county used by the Lord Lieutenant of Greater London does not include the City of London. The Greater London Authority, consisting of the Mayor of London and the London Assembly, headquartered in City Hall, has been responsible for strategic local government since 2000. Greater London occupies the same area as the London European Parliament constituency. It is at the first level of NUTS for statistical purposes, covers 1,572 km² (607 sq mi) and had a population of 8,174,000 at the 2011 census.