Populated places on Lake Simcoe

Barrie is a city in Central Ontario, Canada, about north of Toronto. The city is located along the shores of Kempenfelt Bay and geographically within Simcoe County, although it is a single-tier municipality that is politically independent from the surrounding county.

Orillia () is a city in Ontario, Canada, about 30 km (18 mi) 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.

thumb|right|250px|Ontario Highway 89|Highway 89 through Cookstown

town in York Region, Ontario, Canada

Ramara is a lower-tier township municipality in Simcoe County, Ontario, Canada.

human settlement in Georgina, Ontario, Canada