Pembina is a city in Pembina County, North Dakota, United States. The population was 512 at the 2020 census. Pembina is located 2 miles (3.2 km) south of the Canada–US border. Interstate 29 passes on the western side of Pembina, leading north to the Canada–US border at Emerson, Manitoba and south to the cities of Grand Forks and Fargo. The Pembina–Emerson Border Crossing is the second busiest along the Canada–United States border west of the Great Lakes. It is one of three 24-hour ports of entry in North Dakota, the others being Portal and Dunseith. The Noyes–Emerson East Border Crossing, located 2 miles (3.2 km) to the east on the Minnesota side of the Red River, also processed cross-border traffic until its closure in 2006.