57581 is the Postal Code/PLZ Code for Katzwinkel (Sieg) in the Germany State of Rhineland-Palatinate and the District of Landkreis Altenkirchen (Westerwald).
| Postal Code | 57581 |
| Postal Code Name | Katzwinkel (Sieg) |
| State | Rhineland-Palatinate |
| District | Landkreis Altenkirchen (Westerwald) |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 51598 57537 57548 57584 57587 |