美国邮政编码列表
| 州 | 城市 | 邮政编码 |
|---|---|---|
| IA | Prole | 50229 |
| IA | Radcliffe | 50230 |
| IA | Randall | 50231 |
| IA | Reasnor | 50232 |
| IA | Redfield | 50233 |
| IA | Rhodes | 50234 |
| IA | Rippey | 50235 |
| IA | Roland | 50236 |
| IA | Runnells | 50237 |
| IA | Russell | 50238 |
| IA | Saint Anthony | 50239 |
| IA | Saint Charles | 50240 |
| IA | Saint Marys | 50241 |
| IA | Searsboro | 50242 |
| IA | Sheldahl | 50243 |
| IA | Slater | 50244 |
| IA | Stanhope | 50246 |
| IA | State Center | 50247 |
| IA | Story City | 50248 |
| IA | Stratford | 50249 |