October 29, 2014 Peterborough Is Now At 81,000 Strong October 29, 2014/ PTBOCANADA The Peterborough population sign entering our city used to be stuck at 74,000 but has been recently been updated to 81,000. We're a growing city![Contributed by PtboCanada's Evan Holt]Tip us at tips@ptbocanada.com. Follow us on Twitter, Pinterest and Instagram, and Like us on Facebook.