The area around what became Corunna was inhabited by several Anishinaabe First Nations tribes, including the Mississauga, Odawa, and Ojibwe, prior to European colonization.

Plans were drawn up for the creation of a new capital for The Province of Upper Canada, designed to be 160 hectares (400 acres) in area.

Plans for the capital were ultimately cancelled over protests by residents of Lower Canada due to its non-central location, as well as concerns over proximity to the United States.

The plant produced an average of 3,300 tons of rubber per month during World War II,[3] and continued production afterwards.

Corunna experienced a significant decline in population as a result, since the local economy is largely tied to the Valley.