In 1974, under the Local Government Act 1972, Huntingdon and Peterborough merged with Cambridgeshire and Isle of Ely to form the new non-metropolitan county of Cambridgeshire. A Huntingdon district was created based closely on the former administrative county borders, with the exclusion of the Old Fletton urban district, which became part of the Peterborough district, as did the part of Norman Cross Rural District in Peterborough New Town. The district was renamed Huntingdonshire on 1 October 1984 by a resolution of the district council.