Texas Municipalities and communities of Strafford County, New Hampshire, United StatesCounty seat: DoverCities Dover Rochester Somersworth Map of New Hampshire highlighting Strafford CountyTowns Barrington Durham Farmington Lee Madbury Middleton Milton New Durham Rollinsford Strafford CDPs Durham Farmington Milton Milton Mills Other villages Bow Lake Village Center Strafford East Rochester Gonic North Rochester Place New Hampshire portal United States portal Subcategories This category has the following 4 subcategories, out of 4 total. Towns in Strafford County, New Hampshire (7 C, 10 P)C Census-designated places in Strafford County, New Hampshire (4 P) Cities in Strafford County, New Hampshire (3 C, 3 P)U Unincorporated communities in Strafford County, New Hampshire (5 P)