Corunna, Ontario, is a charming unincorporated community nestled in the St. Clair Township of Lambton County. This community, surveyed by William Beresford in 1823, is located approximately 13 kilometres south of Sarnia. Corunna experienced a significant population boom between the 1830s and 1850s, primarily due to Scotch-Irish immigration. Today, it is home to Chemical Valley, a major petrochemical and plastics manufacturing facility.
The area surrounding Corunna, Ontario, was initially inhabited by several Anishinaabe First Nations tribes, including the Mississauga, Odawa, and Ojibwe. The Aamjiwnaang First Nation is a notable example. The first European exploration of the region occurred in 1823 when William Beresford led an expedition up the St. Clair River.
Plans were once drawn up for Corunna to become the new capital of The Province of Upper Canada. The proposed capital, designed to span 160 hectares, included a central area named St. George's Square, which would have housed most of Canada's governmental buildings. However, these plans were ultimately cancelled due to protests from residents of Lower Canada over its non-central location and concerns about its proximity to the United States.
As of 2021, Corunna, Ontario, had a population of 6,266, marking a 10.2% increase from 2016. The community, which spans an area of 3.79 square kilometres, has a population density of 1,654.5 inhabitants per square kilometre.
Corunna is primarily a suburban community with a majority of residents of European ancestry. According to the 2021 census, 4.5% of the population identified as Aboriginal, 2.8% identified as visible minorities, and 97.2% identified as white. Of those who identified as white, 22.9% identified as ethnically Canadian. It's important to note that these percentages do not add up to 100% due to the ability to select multiple options.
The median age in Corunna is 39.6, slightly lower than Canada's average of 41.2. The community also boasts a median household income of $118,000, reflecting its prosperous economy.
