The City of Adelaide, also known as the Corporation of the City of Adelaide and Adelaide City Council, is a local government area in the metropolitan area of greater Adelaide, South Australia. It is legally defined as the capital city of South Australia by the City of Adelaide Act 1998. It includes the Adelaide city centre, the suburb of North Adelaide, and the Adelaide …The City of Adelaide, also known as the Corporation of the City of Adelaide and Adelaide City Council, is a local government area in the metropolitan area of greater Adelaide, South Australia. It is legally defined as the capital city of South Australia by the City of Adelaide Act 1998. It includes the Adelaide city centre, the suburb of North Adelaide, and the Adelaide Park Lands, which surround North Adelaide and the city centre.