Westminster is a town in Windham County, Vermont, United States. The population was 3,016 at the 2020 census. It is also the first capital of the Republic of Vermont. It borders the state of New Hampshire.

Windham County is a county located in the U.S. state of Vermont. As of the 2020 census, the population was 45,905. The shire town is Newfane, and the largest municipality is the town of Brattleboro.