Washington County is a county located in the U.S. state of North Carolina. As of the 2010 Census, the population was 13,228. Its county seat is Plymouth. The county was formed in 1799 from the western third of Tyrrell County. It was named for George Washington.

Edenton is a town in and the county seat of Chowan County, North Carolina, United States, on Albemarle Sound. The population was 5,004 at the 2010 census. Edenton is located in North Carolina's Inner Banks region. In recent years Edenton has become a popular retirement location and a destination for heritage tourism. Edenton was the birthplace of Harriet Jacobs, an enslaved African American whose 1861 autobiography, Incidents in the Life of a Slave Girl, is now considered an American classic.

Martin County is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 24,505. Its county seat is Williamston.

Perquimans County is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 13,453. Its county seat is Hertford. The county was originally created as Berkeley Precinct. It was renamed Perquimans Precinct around 1684 and gained county status in 1739. Perquimans County is part of the Elizabeth City, NC Micropolitan Statistical Area, which is also included in the Virginia Beach-Norfolk, VA-NC Combined Statistical Area. The Harvey Point Defense Testing Activity facility is located in Perquimans County.