23689 is the Postal Code/PLZ Code for Ratekau in the Germany State of Schleswig-Holstein and the District of Landkreis Ostholstein.
| Postal Code | 23689 |
| Postal Code Name | Ratekau |
| State | Schleswig-Holstein |
| District | Landkreis Ostholstein |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 23611 23617 23626 23629 23669 23683 23684 |