Black Hawk Black Hawk County 1407 Independence Avenue4th FloorWaterloo, Iowa 50703Phone: (319) 292-2272Fax: (319) 291-2628 CountiesAllamakee Black Hawk Butler Cerro Gordo Chickasaw Clayton Emmet Fayette Floyd Grundy Hancock Howard Humboldt Mitchell Pocahontas Tama Webster Winneshiek Wright