Humboldt Humboldt County 203 Main Street PO Box 100 Dakota City, Iowa 50529 Phone: (515) 332-5205 Fax: (515) 332-2289 CountiesAllamakee Black Hawk Butler Cerro Gordo Chickasaw Clayton Emmet Fayette Floyd Grundy Hancock Howard Humboldt Mitchell Pocahontas Tama Webster Winneshiek Wright