Caledonia is a community located on the Grand River in Haldimand County, Ontario, Canada. It had a population of 12,179 as of the 2021 Canadian Census. Caledonia is within Ward 3 of Haldimand County. The Councillor elected for Ward 3 is Dan Lawrence. As of 2021, there were 4,310 private dwellings in Caledonia. Caledonia is located at the intersection of Highway 6 and Haldimand Highway 54 on the Grand River.