| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Serpelice, Sarnaki | 08-221 |
| Postal/ZIP Codes in Stare Hołowczyce, Sarnaki | 08-221 |
| Postal/ZIP Codes in Stare Litewniki, Sarnaki | 08-221 |
| Postal/ZIP Codes in Stare Mierzwice, Sarnaki | 08-220 |
| Postal/ZIP Codes in Terlików, Sarnaki | 08-221 |
| Postal/ZIP Codes in Zabuże, Sarnaki | 08-221 |