Vergennes is a city located in the northwest quadrant of Addison County, Vermont. The municipality is bordered by the towns of Ferrisburgh, Panton and Waltham. As of the 2010 census, the city population was 2,588. It is the smallest of Vermont's nine cities in terms of population, though the city of Winooski covers a smaller area. It was the first city chartered in the state of Vermont.