| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Kollerup, Underup | 8740 |
| Postal/ZIP Codes in Naldal, Underup | 8752, 8752, 8740 |
| Postal/ZIP Codes in Sudkær, Underup | 8752 |
| Postal/ZIP Codes in Torp, Underup | 8740, 8752 |
| Postal/ZIP Codes in Underup, Underup | 8740 |
| Postal/ZIP Codes in Vestbirk, Underup | 8752 |
| Postal/ZIP Codes in Vorbjerg, Underup | 8752, 8752, 8740 |