| Localité | Code postal |
|---|---|
| Adventureland Estates, Polk | 50009 |
| Alleman, Polk | 50007 |
| Altoona, Polk | 50009 |
| Ankeny, Polk | 50021, 50023 |
| Beaverdale, Polk | 50310 |
| Berwick, Polk | 50032 |
| Bondurant, Polk | 50035 |
| Cambridge, Polk | 50046 |
| Camp Dodge, Polk | 50131 |
| Capitol Heights, Polk | 50317 |
| Carbondale, Polk | 50317 |
| Carlisle, Polk | 50047 |
| Clive, Polk | 50324, 50325 |
| Crocker, Polk | 50226 |
| Des Moines, Polk | 50304, 50309, 50310, 50311, 50312, … |
| Elkhart, Polk | 50073 |
| Enterprise, Polk | 50073 |
| Granger, Polk | 50109 |
| Grimes, Polk | 50111 |
| Herrold, Polk | 50111 |
| Highland Park, Polk | 50313 |
| Ivy, Polk | 50009 |
| Johnston, Polk | 50131 |
| Madrid, Polk | 50156 |
| Marquisville, Polk | 50313 |
| Maxwell, Polk | 50161 |