Hardwick is a town in Caledonia County, Vermont, United States. The population was 2,920 at the 2020 census. It contains the unincorporated villages of Hardwick, East Hardwick, and Mackville. The town is a commercial center for the region's farming population. The main settlement of Hardwick in the center of the town, formerly an incorporated village, is since 1988 a census-designated place, with a population of 1,269 at the 2020 census.