21775 is the Postal Code/PLZ Code for Ihlienworth in the Germany State of Lower Saxony and the District of Landkreis Cuxhaven.
| Postal Code | 21775 |
| Postal Code Name | Ihlienworth |
| State | Lower Saxony |
| District | Landkreis Cuxhaven |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 21762 21763 21765 21772 21776 21782 27624 |