South Tyneside is a metropolitan borough in the metropolitan county of Tyne and Wear, England. It is bordered by all four other boroughs in Tyne and Wear: Gateshead to the west, Sunderland in the south, North Tyneside to the north and Newcastle upon Tyne to the north-west. The border county of Northumberland lies further north. The borough was formed on 1 April 1974 by the merger of the County Borough of South Shields with the municipal borough of Jarrow and the urban districts of Boldon and Hebburn from County Durham.