Peterborough Townships
- Asphodel Township Opened for settlement in 1821
- Belmont and Methuen Townships Opened for settlement in 1823 but by 1842 had only 33 householders, in 1866 only 185.
- Burleigh and Anstruther Townships First settled in 1861. First Post Office was called Burleigh. Separated from Dummer Township in 1865.
- Chandos Township Opened for settlement in 1862
- Douro Township Opened for settlement in 1821
- Dummer Township Opened for settlement in 1821. A Colony of immigrants came in 1831, of whom 150 were sent out by the Marquis of Bath.
- Ennismore Township Opened for settlement in 1829. Originally it was called Emily Gore.
- Galway and Cavendish Townships Galway opened in 1857 and Cavendish in 1862
- Harvey Township Opened for settlement in 1821 Was part of Smith township until 1866. First settler were retired officers who come in 1832, but did not stay.
- North Monaghan Township Opened for settlement 1820.
- Otonabee Township Opened for settlement in 1820
- Smith Township Settled in 1819 by Allen Otty.
Peterborough County currently consists of eight townships:
- Asphodel-Norwood
- Cavan-Monaghan
- Douro-Dummer
- Galway-Cavendish-Harvey
- Havelock-Belmont-Methuen
- North Kawartha
- Otonabee-South Monaghan
- Smith-Ennismore-Lakefield