HMP Peterborough opened in Spring 2005. It is a Category B prison and the first purpose-built prison to house both men and women, accommodating 480 men and 360 women, with a dozen of the latter places set aside for a maternity care unit. The prison's main use is for remand prisoners and those awaiting transfer to other prisons.

The City of Peterborough is a cathedral city and Unitary Authority in the East of England. For ceremonial purposes it is in the county of Cambridgeshire.

Peterborough is a federal and provincial electoral district in Ontario, Canada, that has been represented in the Canadian House of Commons since 1953. It will elect a member of the Legislative Assembly of Ontario in the next provincial election.

Peterborough is a constituency represented in the House of Commons of the Parliament of the United Kingdom. It elects one Member of Parliament (MP) by the first past the post system of election.