Collinsville is a village and census-designated place (CDP) in the town of Canton, Hartford County, Connecticut, United States. The population was 3,746 at the 2010 census. The central portion of the village is a historic district listed on the National Register of Historic Places.

Canton is a town, incorporated in 1806, located in the Farmington Valley section of the Capitol Planning Region, Connecticut, United States. The population was 10,124 as of the 2020 census. It is bordered by Granby on the north, Simsbury on the east, Avon and Burlington on the south, New Hartford on the west, and Barkhamsted on the northwest. Running through it is the Farmington River. The town includes the villages of North Canton, Canton Center, Canton, and Collinsville. In September 2007, Collinsville was ranked in Budget Travel magazine as one of the "Ten Coolest Small Towns In America".