| Place | Postal Code |
|---|---|
| Bartki, Lelkowo | 14-521 |
| Bieńkowo, Lelkowo | 14-521 |
| Dębowiec, Lelkowo | 14-521 |
| Giedawy, Lelkowo | 14-521 |
| Głębock, Lelkowo | 14-521 |
| Grabowiec, Lelkowo | 14-521 |
| Jachowo, Lelkowo | 14-521 |
| Jarzeń, Lelkowo | 14-521 |
| Krzekoty, Lelkowo | 14-521 |
| Kwiatkowo, Lelkowo | 14-521 |
| Lelkowo, Lelkowo | 14-521 |
| Lutkowo, Lelkowo | 14-521 |
| Miłaki, Lelkowo | 14-521 |
| Młyniec, Lelkowo | 14-521 |
| Nałaby, Lelkowo | 14-521 |
| Perwilty, Lelkowo | 14-521 |
| Piele, Lelkowo | 14-521 |
| Przebędowo, Lelkowo | 14-521 |
| Słup, Lelkowo | 14-521 |
| Sówki, Lelkowo | 14-521 |
| Szarki, Lelkowo | 14-521 |
| Wilknicki Młyn, Lelkowo | 14-521 |
| Wilknity, Lelkowo | 14-521 |
| Wola Wilknicka, Lelkowo | 14-521 |
| Wołowo, Lelkowo | 14-521 |
| Wyszkowo, Lelkowo | 14-521 |