Map of Peterborough, Ontario, Canada

Peterborough is a city in Ontario, Canada, with a population of about 85,807. It lies at 44.3001°N, 78.3162°W. Peterborough is about 241 km (149 mi) southwest of Ottawa, the capital. The nearest city on our map is Quinte West, 61 km to the east.

Peterborough at a glance

Where is Peterborough?

• Located in the Northern and Western hemispheres.
• Daylight ranges from about 8 h 51 min on the shortest day to 15 h 32 min on the longest day (around 21 December and 21 June).

Cities near Peterborough

• Quinte West — 61 km east
• Oshawa — 62 km southwest
• Belleville — 76 km east
• Ajax — 76 km southwest
• Pickering — 79 km southwest
• Stouffville — 83 km southwest
• Markham — 90 km southwest
• Newmarket — 96 km west
• Aurora — 98 km west
• Richmond Hill — 101 km southwest

Largest cities in Ontario

• Toronto — 2,794,356
• Ottawa — 1,017,449
• Mississauga — 717,961
• Brampton — 656,480
• Hamilton — 569,353
• London — 422,324
• Etobicoke — 365,000
• Markham — 338,503
• Vaughan — 323,103
• Kitchener — 256,885

Largest cities in Canada

• Toronto — 2,794,356
• Montréal — 1,762,949
• Calgary — 1,306,784
• Ottawa — 1,017,449
• Edmonton — 1,010,899
• Winnipeg — 749,607
• Mississauga — 717,961
• Vancouver — 662,248
• Brampton — 656,480
• Hamilton — 569,353

Map of Canada and all its cities →

Other places named Peterborough

• Peterborough — England, United Kingdom

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.