Wilmington is a town in Windham County, Vermont, United States. The population was 1,876 at the 2010 census.
The town was chartered in 1751 by Benning Wentworth, colonial governor of New Hampshire. It was named in honor of Spencer Compton, 1st Earl of Wilmington. Wilmington is the home of Haystack Mountain Ski Area, which operates as a private Club, The Hermitage Club.
According to the United States Census Bureau, the town has a total area of 41.3 square miles (106.9 km2), of which 39.4 square miles (102.1 km2) is land and 1.8 square miles (4.7 km2) (4.39%) is water. Wilmington is drained by the North Branch Deerfield River, as well as Meadow Brook, Rose Brook, Haystack Brook, Hall Brook, Ellis Brook, Beaver Brook, Negus Brook and Wilder Brook. It is located in the Deerfield Valley of the Green Mountains.
The town is crossed by:
The Deerfield Valley Transit Association (DVTA) is the primary public local bus transportation provider for Wilmington and the rest of the Deerfield Valley. Their nickname, "the MOOver", derives from their buses' black and white Holstein cow paint scheme and appearance.