Wellington County is a county located in Southwestern Ontario, Canada and is part of the Greater Golden Horseshoe. The county, made up of two towns and five townships, is predominantly rural in nature. However many of the residents in the southern part of the county commute to urban areas such as Guelph, Kitchener, Waterloo, Brampton, Mississauga, Toronto and Hamilton for employment. The northern part of the county is made up of mainly rural farming communities, except for a few larger towns such as Mount Forest and Arthur. According to the 2021 census, the population of the county was 241,026.

Southwestern Ontario is a secondary region of Southern Ontario in the Canadian province of Ontario. It occupies most of the Ontario Peninsula bounded by Lake Huron, including Georgian Bay, to the north and northwest; the St. Clair River, Lake St. Clair, and Detroit River, to the west; and Lake Erie to the south. To the east, on land, Southwestern Ontario is bounded by Central Ontario and the Golden Horseshoe. The region had a population of 2,796,367 in 2021.