Cerro Gordo County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 43,127. Its county seat is Mason City. The county is named for the Battle of Cerro Gordo, which took place during the Mexican–American War.... Wikipedia
Cities: Mason City, Clear Lake, Rockwell, and more
County seat: Mason City
Area: 575 mi²
Population: 42,409 (2022)
Founded: 1851
Named for: Battle of Cerro Gordo