Park Rapids is a city in and the county seat of Hubbard County, Minnesota, United States. It is near Itasca State Park, the source of the Mississippi River, as well as the beginning of the Heartland State Trail. The city was founded in 1890 near the Fish Hook River rapids and is located along U.S. Highway 71 and Minnesota State Highway 34. The population was 3,709 at the 2010 census.