42781 is the Postal Code/PLZ Code for Haan in the Germany State of North Rhine-Westphalia and the District of Landkreis Mettmann. The town of Haan is located in Postal Code 42781.
| Postal Code | 42781 |
| Postal Code Name | Haan |
| State | North Rhine-Westphalia |
| District | Landkreis Mettmann |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 40699 40724 40822 42327 42329 42697 42719 |