| Place | Post Code |
|---|---|
| Piaski, Ruciane-Nida | 12-220 |
| Pieczysko, Ruciane-Nida | 12-200 |
| Popielno, Ruciane-Nida | 12-220 |
| Pranie, Ruciane-Nida | 12-220 |
| Ruciane-Nida, Ruciane-Nida | 12-220 |
| Ruczaj, Ruciane-Nida | 12-220 |
| Śwignajno Małe, Ruciane-Nida | 12-220 |
| Śwignajno Wielkie, Ruciane-Nida | 12-220 |
| Szeroki Bór, Ruciane-Nida | 12-200 |
| Ukta, Ruciane-Nida | 12-220 |
| Warnowo, Ruciane-Nida | 12-220 |
| Wejsuny, Ruciane-Nida | 12-220 |
| Wejsuny-Leśniczówka, Ruciane-Nida | 12-220 |
| Wierzba, Ruciane-Nida | 12-220 |
| Wojnowo, Ruciane-Nida | 12-220 |
| Wólka, Ruciane-Nida | 12-220 |
| Wygryny, Ruciane-Nida | 12-220 |
| Wypad, Ruciane-Nida | 12-220 |
| Zameczek, Ruciane-Nida | 12-220 |
| Zamordeje, Ruciane-Nida | 12-200 |
| Zaroślak, Ruciane-Nida | 12-220 |
| Zdrużno, Ruciane-Nida | 12-220 |
| All postal codes in Piski | |
|---|---|
| Biała Piska, Piski | |
| Orzysz, Piski | |
| Pisz, Piski | |
| Ruciane-Nida, Piski | |