Of 14 counties in the state, Windham County is fourth in terms of its size (798 square miles). Windham County is in South Vermont. Recent listings of commercial land and property for sale in Vermont's Windham County totals around 1,000 acres and a combined market value of approximately $100,000. The most common type of land for sale by combined acreage in Windham County is residential property. Browse all Windham County commercial acreage for sale on the Land Network to find your next commercial property or land investment. The most common type of land for sale by combined acreage in Windham County is residential property.