37649 is the Postal Code/PLZ Code for Heinsen in the Germany State of Lower Saxony and the District of Landkreis Holzminden.
| Postal Code | 37649 |
| Postal Code Name | Heinsen |
| State | Lower Saxony |
| District | Landkreis Holzminden |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 37639 37647 37671 |