East Grand Forks is a city in Polk County, Minnesota, United States. The population was 8,601 at the 2010 Census, making it the largest community in Polk County.It is located in the Red River Valley region along the eastern bank of the Red River of the North, directly across from the larger city of Grand Forks, North Dakota. The cities of Grand Forks and East Grand Forks form the center of the Grand Forks, ND–MN Metropolitan Statistical Area, which is often called Greater Grand Forks. The metropolitan area had an estimated population of 102,449 on July 1, 2015.