Martin County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 20,840. Its county seat is Fairmont. Martin County was named for Henry Martin, a pioneer settler.
Martin County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 20,840. Its county seat is Fairmont. Martin County was named for Henry Martin, a pioneer settler.