| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Wielowieś, Gniewkowo | 88-140 |
| Postal/ZIP Codes in Wierzbiczany, Gniewkowo | 88-140 |
| Postal/ZIP Codes in Wierzchosławice, Gniewkowo | 88-140 |
| Postal/ZIP Codes in Zajezierze, Gniewkowo | 88-140 |
| Postal/ZIP Codes in Żyrosławice, Gniewkowo | 88-140 |