| District
1 (Northeast Iowa):
Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton,
Delaware, Dubuque, Fayette, Howard and Winneshiek counties
District
2 (North Central Iowa): Butler, Cerro Gordo,
Floyd, Franklin, Hancock, Humbolt, Kossuth, Mitchell,
Winnebago, Worth and Wright counties
District
3 (Northwest Iowa): Buena Vista,
Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola,
Palo Alto, Plymouth, Pocahontas and Sioux counties
District
4 (West Central Iowa): Audubon, Calhoun,
Carroll, Crawford, Guthrie, Harrison, Ida, Monona, Sac,
Shelby and Woodbury counties
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District
5 (Central Iowa): Boone, Dallas, Greene,
Grundy, Hamilton, Hardin, Jasper, Marshall, Polk, Story
and Webster counties
District
6 (East Central Iowa): Benton, Cedar, Clinton,
Iowa, Jackson, Johnson, Jones, Linn, Poweshiek, Scott
and Tama counties
District
7 (Southeast Iowa): Davis, Des Moines,
Henry, Jefferson, Keokuk, Lee, Louisa, Muscatine, Van
Buren, Wapello and Washington counties
District
8 (South Central Iowa): Appanoose, Clarke,
Decatur, Lucas, Madison, Mahaska, Marion, Monroe, Warren
and Wayne counties
District
9 (Southwest Iowa): Adair, Adams, Cass,
Fremont, Mills, Montgomery, Page, Pottawattamie, Ringgold,
Taylor and Union counties
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