Downtown Peterborough at dusk from the Otonabee – Jkentrandall, CC BY-SA 3.0 – Wikimedia Commons Peterborough is located in Central Ontario. The area is situated on the Otonabee River. Around 81,032 people live here. The region lies at 195 metres above sea level. Its area extends over around 58.4 square kilometres. Peterborough has around 3.022 streets. The region was founded in the year 1819. Peterborough is city in Ontario, Canada. Among other things, Peterborough has public transport, hotels, restaurants, cafés, supermarkets, clothing stores, attractions, banks, hairdressers, dentists, doctors and pharmacies. For more information, see www.peterborough.ca.