| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Graben, Opponitz | 3342 |
| Postal/ZIP Codes in Gstadt, Opponitz | 3342 |
| Postal/ZIP Codes in Hauslehen, Opponitz | 3342 |
| Postal/ZIP Codes in Ofenberg, Opponitz | 3342 |
| Postal/ZIP Codes in Schwarzenbach, Opponitz | 3341, 3342, 3342 |
| Postal/ZIP Codes in Strubb, Opponitz | 3342 |
| Postal/ZIP Codes in Thann, Opponitz | 3342 |