Plymouth
- County:
- Washington County
- County Seat:
- Yes
- Area (mi²):
- 4.029
- State:
- North Carolina
Plymouth is a town located in Washington County, North Carolina. Plymouth has a 2026 population of 3,190. It is also the county seat of Washington County. Plymouth is currently declining at a rate of -0.9% annually and its population has decreased by -3.63% since the most recent census, which recorded a population of 3,310 in 2020.