Garden City is an unincorporated community and census-designated place (CDP) in Garden City Township, Blue Earth County, Minnesota, United States. Its population was 255 as of the 2010 census.

Blue Earth County is a county in the State of Minnesota. As of the 2020 census, the population was 69,112. Its county seat is Mankato. The county is named for the Blue Earth River and for the deposits of blue-green clay once evident along the banks of the Blue Earth River. Blue Earth County is part of the Mankato-North Mankato metropolitan area.