Halifax is a town in Windham County, Vermont, in the United States. As of the 2020 census, the town population was 771. Halifax was the second town chartered, west of the Connecticut River on May 11, 1750, by New Hampshire Governor Benning Wentworth, meaning Halifax is the second oldest town in the state after Bennington. The town was named for G…Halifax is a town in Windham County, Vermont, in the United States. As of the 2020 census, the town population was 771. Halifax was the second town chartered, west of the Connecticut River on May 11, 1750, by New Hampshire Governor Benning Wentworth, meaning Halifax is the second oldest town in the state after Bennington. The town was named for George Montagu-Dunk, 2nd Earl of Halifax.