Adair, Appanoose, Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler, Calhoun, Carroll, Cass, Cedar, Cerro Gordo, Cherokee, Chickasaw, Clarke, Clayton, Clinton, Dallas, Davis, 德拉瓦, Des Moines, Fayette, Floyd, Franklin, Greene, Grundy, Guthrie, Hamilton, Hancock, Hardin, Henry, Humboldt, 愛荷華, Jackson, Jasper, Jefferson, Johnson, Jones, Keokuk, Linn, Louisa, Lucas, Madison, Mahaska, Marion, Marshall, Mills, Monroe, Muscatine, Plymouth, Pocahontas, Polk, Pottawattamie, Poweshiek, Sac, Scott, Sioux, Story, Tama, Van Buren, Wapello, Warren, 華盛頓, Wayne, Webster, Winnebago, Woodbury, and Wright。