Cerro Gordo

Ventura

ZIP Code(s): 50428, 50482; County(s): Cerro Gordo;

Rockwell

ZIP Code(s): 50469; County(s): Cerro Gordo;

Clear Lake

ZIP Code(s): 50428; County(s): Cerro Gordo;

Mason City

ZIP Code(s): 50401, 50402; County(s): Cerro Gordo;