As a result, in parts of England there are local government counties with districts in them. In other parts there are counties with just one district, and in those parts there is only one council, which is the district council or the county council. Greater London is not a county; it has City of London, London Borough Councils, and a Greater London Authority. The Council of the Isles of Scilly is unique but is in effect a county council operating as unitary authority.