Swift County is a county located in the U.S. state of Minnesota. As of 2010, the population was 9,783. Its county seat is Benson.
According to the U.S. Census Bureau, the county has a total area of 752 square miles (1,949 kmē), of which 744 square miles (1,926 kmē) is land and 9 square miles (23 kmē) (1.17%) is water.
Swift County was established February 18th, 1870. This county was named after Henry Adoniram Swift, the governor of Minnesota in 1863. It is located in the west central part of Minnesota and consists of 757 square miles with 3 tiers of 7 townships each. The Swift County Courthouse was built in 1897 and was declared a national historic site in 1976. The City of Benson is the County seat of Swift County. The railroad tracks run through the center of the town of Benson and divide the downtown business districts with parks on each side of the tracks.