Orillia is a city in Ontario, Canada, about 30 km north-east of Barrie in Simcoe County. It is located at the confluence of Lake Couchiching and Lake Simcoe. Although it is geographically located within Simcoe County, the city is a single-tier municipality. It is part of the Huronia region of Central Ontario. The population in 2021 was 33,411.

Barrie is a city in Central Ontario, Canada, about 90 kilometres (56 mi) north of Toronto. The city is within Simcoe County and located along the shores of Kempenfelt Bay. Although it is physically in the county, Barrie is politically independent. The city is part of the extended urban area in southern Ontario known as the Greater Golden Horseshoe. As of the 2021 census, the city's population was 147,829, while the census metropolitan area had a population of 212,667 residents.