Service Area 1 - Adair, Appanoose, Boone, Carroll, Clarke, Dallas, Davis, Decatur, Greene, Guthrie, Jasper, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Polk, Poweshiek, Ringgold, Story, Tama, Union, Warren, Wayne counties.

Service Area 2 - Butler, Cerro Gordo, Chickasaw, Floyd, Franklin, Hancock, Hardin, Kossuth, Mitchell, Winnebago, Worth, Wright counties.

Service Area 3 - Cherokee, Clay, Dickinson, Emmet, Ida, Lyon, Monona, O'Brien, Osceola, Palo Alto, Plymouth, Sioux, Woodbury counties.

Service Area 4 - Adams, Audubon, Cass, Crawford, Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie, Shelby, Taylor counties.

Service Area 5 - Cedar, Clinton, Des Moines, Henry, Iowa, Jackson, Jefferson, Johnson, Keokuk, Lee, Louisa, Muscatine, Scott, Van Buren, Wapello, Washington counties.

Service Area 6 - Allamakee, Benton, Black Hawk, Bremer, Buchanan, Clayton, Delaware, Dubuque, Fayette, Grundy, Howard, Jones, Linn, Winneshiek counties.

Service Area 7 - Buena Vista, Calhoun, Hamilton, Humboldt, Pocahontas, Sac, Webster counties.