26131 is the Postal Code/PLZ Code for Oldenburg (Oldenburg) in the Germany State of Lower Saxony and the District of Oldenburg (Oldenburg).
| Postal Code | 26131 |
| Postal Code Name | Oldenburg (Oldenburg) |
| State | Lower Saxony |
| District | Oldenburg (Oldenburg) |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 26122 26129 26133 26135 26188 26203 |