Iowa Postal Codes

County
Adair (9) Adams (7)
Allamakee (17) Appanoose (17)
Audubon (9) Benton (16)
Black Hawk (25) Boone (10)
Bremer (16) Buchanan (15)
Buena Vista (17) Butler (16)
Calhoun (19) Carroll (16)
Cass (10) Cedar (17)
Cerro Gordo (19) Cherokee (9)
Chickasaw (14) Clarke (4)
Clay (10) Clayton (31)
Clinton (31) Crawford (15)
Dallas (20) Davis (5)
Decatur (13) Delaware (17)
Des Moines (12) Dickinson (17)
Dubuque (34) Emmet (7)
Fayette (24) Floyd (10)
Franklin (10) Fremont (10)
Greene (8) Grundy (10)
Guthrie (16) Hamilton (9)
Hancock (14) Hardin (20)
Harrison (10) Henry (12)
Howard (13) Humboldt (11)
Ida (5) Iowa (19)
Jackson (19) Jasper (18)
Jefferson (17) Johnson (25)
Jones (15) Keokuk (24)
Kossuth (21) Lee (24)
Linn (45) Louisa (15)
Lucas (10) Lyon (10)
Madison (13) Mahaska (17)
Marion (20) Marshall (16)
Mills (8) Mitchell (15)
Monona (12) Monroe (7)
Montgomery (8) Muscatine (12)
O'Brien (12) Osceola (8)
Page (12) Palo Alto (10)
Plymouth (14) Pocahontas (12)
Polk (144) Pottawattamie (18)
Poweshiek (13) Ringgold (10)
Sac (11) Scott (30)
Shelby (13) Sioux (20)
Story (27) Tama (16)
Taylor (14) Union (9)
Van Buren (13) Wapello (15)
Warren (29) Washington (18)
Wayne (12) Webster (25)
Winnebago (8) Winneshiek (18)
Woodbury (29) Worth (9)
Wright (11)
Information

Iowa is an Administrative divisions in United States.

United States