Washington County is a county located in the U.S. state of North Carolina. As of 2000, the population was 13,723. Its county seat is Plymouth.
The county was formed in 1799 from the western third of Tyrrell County. It was named for George Washington.
According to the U.S. Census Bureau, the county has a total area of 424 square miles, of which, 348 square miles of it is land and 76 square miles of it (17.89%) is water.