31028 is the Postal Code/PLZ Code for Gronau (Leine) in the Germany State of Lower Saxony and the District of Landkreis Hildesheim. The town of Gronau (Leine) is located in Postal Code 31028.
| Postal Code | 31028 |
| Postal Code Name | Gronau (Leine) |
| State | Lower Saxony |
| District | Landkreis Hildesheim |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 31008 31036 31061 31079 31089 31139 31171 31199 |