Manns Harbor is an unincorporated community and census-designated place in Dare County, North Carolina, United States. As of the 2010 census it had a population of 821.Located east of the intersection of US 64 and US 264, it is nestled along the western bank of Croatan Sound. Before 1957, Manns Harbor used to harbor a ferry that traversed the sound and provided access to Roanoke Island. Today, the William B. Umstead Bridge and the four-lane Virginia Dare Memorial Bridge link Manns Harbor on the mainland to Manteo on Roanoke Island. The community provides a gateway to North Carolina's Outer Banks.The residents of Manns Harbor are governed by the Dare County Board of Commissioners. Manns Harbor is part of District 1, along with Manteo, Roanoke Island, and Wanchese.The Hyde County airport and Dare County Regional Airport are the closest airports.