It is part of the East of England Local Government Association and a constituent member of the Cambridgeshire and Peterborough Combined Authority.

For ceremonial, geographic, and certain administrative purposes, however, Peterborough continues to be associated with and work in collaboration with Cambridgeshire County Council.

[3] The council is responsible for public services such as education, transport, highways, heritage, social care, libraries, trading standards, and waste management.

[4] In 2024, the council conceded that it had discriminated against Lizzie Pitt, a social worker, by initiating a disciplinary process against her following her gender-critical statements made at an LGBT support group.

[23] Richard Howitt Ryan Fuller Steve Cortney The council was granted a coat of arms on 1 November 1976.

Other parts of the design represent different parts of the county and the council's predecessors: the supporters are great bustards, birds which were formerly common in the Fens, the crossed keys are a symbol of Saint Peter, representing Peterborough, and the hunting horn is a symbol of the former county of Huntingdonshire.