The Diocese of Peterborough includes over 350 churches and covers Northamptonshire, Rutland and Peterborough (north of the River Nene); more than 1200 square miles with a population of 800,000.

Major diocesan gatherings and services such as the Ordination of Priests, the Renewal of Ordination Vows, the Licensing of Lay Ministers and diocesan Confirmations take place at Peterborough Cathedral. The concerns of churches across the diocese are also remembered in daily prayers.

Peterborough Diocese and Cathedral are also linked with Anglican overseas dioceses for prayers and mutual support. The current link is with the Diocese of Seoul in South Korea.