Caledonia is a small riverside community and former town located on the Grand River in Haldimand County, Ontario, Canada. It had a 2011 population of 9,999. Caledonia is within Ward 3 of Haldimand County. The Councillor elected for Ward 3 is Craig Grice. As of September 2006, there are approximately 4,000 households in the community of Caledonia.