| Place | Post Code |
|---|---|
| Abisynia, Karsin | 83-440 |
| Abisynia Górska, Karsin | 83-442 |
| Abisynia (Wiele), Karsin | 83-441 |
| Ameryka, Karsin | 83-440 |
| Bąk, Karsin | 83-440 |
| Będomin, Karsin | 83-441 |
| Bekasowo, Karsin | 83-441 |
| Biała Góra, Karsin | 83-441 |
| Białe Błoto, Karsin | 83-440 |
| Borsk, Karsin | 83-442 |
| Buchta, Karsin | 83-440 |
| Chojny, Karsin | 83-441 |
| Cisewie, Karsin | 83-440 |
| Czarnowodzianka, Karsin | 83-442 |
| Czyste, Karsin | 83-442 |
| Dąbrowa, Karsin | 83-441 |
| Dębówiec, Karsin | 83-440 |
| Górki, Karsin | 83-442 |
| Jasnochówka, Karsin | 83-442 |
| Jeżewo, Karsin | 83-441 |
| Jeziorna, Karsin | 83-442 |
| Joniny Duże, Karsin | 83-441 |
| Joniny Małe, Karsin | 83-441 |
| Karsin, Karsin | 83-440 |
| Kąty, Karsin | 83-440 |
| Kliczkowy, Karsin | 83-442 |