57648 is the Postal Code/PLZ Code for Unnau in the Germany State of Rhineland-Palatinate and the District of Landkreis Westerwaldkreis.
| Postal Code | 57648 |
| Postal Code Name | Unnau |
| State | Rhineland-Palatinate |
| District | Landkreis Westerwaldkreis |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 56470 56472 57627 57629 57642 57645 57647 |