78089 is the Postal Code/PLZ Code for Unterkirnach in the Germany State of Baden-Württemberg and the District of Landkreis Schwarzwald-Baar-Kreis.
| Postal Code | 78089 |
| Postal Code Name | Unterkirnach |
| State | Baden-Württemberg |
| District | Landkreis Schwarzwald-Baar-Kreis |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 78048 78052 78087 78112 78147 |