53840 is the Postal Code/PLZ Code for Troisdorf in the Germany State of North Rhine-Westphalia and the District of Landkreis Rhein-Sieg-Kreis. The town of Troisdorf is located in Postal Code 53840.
| Postal Code | 53840 |
| Postal Code Name | Troisdorf |
| State | North Rhine-Westphalia |
| District | Landkreis Rhein-Sieg-Kreis |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 53721 53757 53797 53842 53844 |