US location post office
Iowa ZIP Codes
| ZIP Code | Type | City | County | County Code |
|---|---|---|---|---|
| 51030 | Standard | Lawton | Woodbury | 19193 |
| 51031 | Standard | Le Mars | Plymouth | 19149 |
| 51033 | Standard | Linn Grove | Buena Vista | 19021 |
| 51034 | Standard | Mapleton | Monona | 19133 |
| 51035 | Standard | Marcus | Cherokee | 19035 |
| 51036 | Standard | Maurice | Sioux | 19167 |
| 51037 | Standard | Meriden | Cherokee | 19035 |
| 51038 | Standard | Merrill | Plymouth | 19149 |
| 51039 | Standard | Moville | Woodbury | 19193 |
| 51040 | Standard | Onawa | Monona | 19133 |
| 51041 | Standard | Orange City | Sioux | 19167 |
| 51044 | Standard | Oto | Woodbury | 19193 |
| 51046 | Standard | Paullina | O'Brien | 19141 |
| 51047 | Standard | Peterson | Clay | 19041 |
| 51048 | Standard | Pierson | Woodbury | 19193 |
| 51049 | Standard | Quimby | Cherokee | 19035 |
| 51050 | Standard | Remsen | Plymouth | 19149 |
| 51051 | Standard | Rodney | Monona | 19133 |
| 51052 | Standard | Salix | Woodbury | 19193 |
| 51053 | Standard | Schaller | Sac | 19161 |
| 51054 | Standard | Sergeant Bluff | Woodbury | 19193 |
| 51055 | Standard | Sloan | Woodbury | 19193 |
| 51056 | Standard | Smithland | Woodbury | 19193 |
| 51058 | Standard | Sutherland | O'Brien | 19141 |
| 51060 | Standard | Ute | Monona | 19133 |
| 51061 | Standard | Washta | Cherokee | 19035 |
| 51062 | Standard | Westfield | Plymouth | 19149 |
| 51063 | Standard | Whiting | Monona | 19133 |
| 51101 | Standard | Sioux City | Woodbury | 19193 |
| 51103 | Standard | Sioux City | Woodbury | 19193 |
| 51104 | Standard | Sioux City | Woodbury | 19193 |
| 51105 | Standard | Sioux City | Woodbury | 19193 |
| 51106 | Standard | Sioux City | Woodbury | 19193 |
| 51108 | Standard | Sioux City | Woodbury | 19193 |
| 51109 | Standard | Sioux City | Woodbury | 19193 |
| 51111 | Standard | Sioux City | Woodbury | 19193 |
| 51201 | Standard | Sheldon | O'Brien | 19141 |
| 51230 | Standard | Alvord | Lyon | 19119 |
| 51231 | Standard | Archer | O'Brien | 19141 |
| 51232 | Standard | Ashton | Osceola | 19143 |
| 51234 | Standard | Boyden | Sioux | 19167 |
| 51235 | Standard | Doon | Lyon | 19119 |
| 51237 | Standard | George | Lyon | 19119 |
| 51238 | Standard | Hospers | Sioux | 19167 |
| 51239 | Standard | Hull | Sioux | 19167 |
| 51240 | Standard | Inwood | Lyon | 19119 |
| 51241 | Standard | Larchwood | Lyon | 19119 |
| 51242 | POBox | Lester | Lyon | 19119 |
| 51243 | Standard | Little Rock | Lyon | 19119 |
| 51244 | Standard | Matlock | Sioux | 19167 |
Iowa Cities & Towns
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