| Diocese | Peterborough |
| City | Parish (Catholic Population of the Parish) |
| Mactier | Saint James the Great (288) |
| Honey Harbour | Our Lady of Mercy (300) |
| Cardiff | Our Lady of Lourdes (320) |
| Britt | Holy Family (500) |
| Millbrook | St. Thomas More (1200) |
| Peterborough | Korean Martyrs |