Check Kalasin post code listed for you to send parcel, mail or documents.
| Province | District | Zip Code | Note |
| Kalasin | Kamalasai | 46130 | |
| Kalasin | Kuchinarai | 46110 | |
| Kalasin | Khao Wong | 46160 | |
| Kalasin | Kham Muang | 46180 | |
| Kalasin | Khong Chai | 46130 | |
| Kalasin | Don Chan | 46000 | |
| Kalasin | Tha Khantho | 46190 | |
| Kalasin | Na Khu | 46160 | |
| Kalasin | Na Mon | 46230 | |
| Kalasin | Mueang Kalasin | 46000 | |
| Kalasin | Yang Talat | 46120 | |
| Kalasin | Rong Kham | 46210 | |
| Kalasin | Somdet | 46150 | |
| Kalasin | Sahatsakhan | 46140 | |
| Kalasin | Sam Chai | 46180 | |
| Kalasin | Nong Kung Si | 46220 | |
| Kalasin | Huai Phueng | 46240 | |
| Kalasin | Huai Mek | 46170 |
