ZIP Code 51603 is located in Shenandoah Iowa. Portions of 51603 are also in Fisher Township. 51603 is entirely within Page County. Regionally, 51603 is located in the Omaha Area.
| ZIP Code Name | Shenandoah |
| Primary County | Page County |
| ZIP Code Type | Unique |
| Area Code(s) | 712 |
| Current Time | CST |
| Coordinates | 40.76702118,-95.37384796 |
| Adjacent ZIP Codes | |
| Cities/Towns in 51603 | |
| Region | Omaha Area |
| Time Zone | Central Standard Time |
| IANA Timezone | America/Chicago |
| Area | 0.00785334 Square Miles |