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.

Caledonia County is a county located in the northeastern part of the U.S. state of Vermont. As of the 2020 census, the population was 30,233. Its shire town is the town of St. Johnsbury. The county was created in 1792 and organized in 1796. It was given the Latin name for Scotland, in honor of the many settlers who claimed ancestry there.