23730 is the Postal Code/PLZ Code for Neustadt in Holstein in the Germany State of Schleswig-Holstein and the District of Landkreis Ostholstein. The town of Neustadt is located in Postal Code 23730.
| Postal Code | 23730 |
| Postal Code Name | Neustadt in Holstein |
| State | Schleswig-Holstein |
| District | Landkreis Ostholstein |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 23683 23684 23701 23717 23738 23743 23744 |