The value of all farmsand rural real estate for sale in Windham County, Vermont, recently was $219 million, representing a total of 6,267 acres of land for sale in Windham County. Windham County ranks second based on the total acres of land for sale among all the counties in the Green Mountain State. Among cities in Windham County with land for sale, Dover featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Windham County's overall GDP. Windham County is one of the ten biggest counties in Vermont (798 square miles). It's located in the South Vermont region of the state.