Collinsville is a village and census-designated place (CDP) in the town of Canton in Hartford County, Connecticut, United States. The population was 2,686 at the 2000 census. The central portion of the village is a historic district listed on the National Register of Historic Places. Collinsville is located in the southwestern part of Canton. It was built around The Collins Company Axe Factory, a world renowned manufacturer of edge tools, such as axes, machetes, picks and knives.