| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Rychnowo, Grunwald | 14-106 |
| Postal/ZIP Codes in Rychnowska Wola, Grunwald | 14-106 |
| Postal/ZIP Codes in Rzepki, Grunwald | 14-107 |
| Postal/ZIP Codes in Stębark, Grunwald | 14-107 |
| Postal/ZIP Codes in Szczepankowo, Grunwald | 14-107 |
| Postal/ZIP Codes in Tymawa, Grunwald | 14-107 |
| Postal/ZIP Codes in Ulnowo, Grunwald | 14-107 |
| Postal/ZIP Codes in Wróble, Grunwald | 14-107 |
| Postal/ZIP Codes in Zapieka, Grunwald | 14-107 |
| Postal/ZIP Codes in Zybułtowo, Grunwald | 14-107 |