| Postal Code | 26-001 |
| Postal Code Name | Masl |
| Voivodeship | Swietokrzyskie Voivodeship |
| County | Kielce County |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 25-351 25-414 25-432 25-433 25-434 25-437 25-443 25-445 25-447 25-451 25-453 25-455 25-458 25-460 25-551 25-561 25-563 26-008 26-010 26-050 26-085 26-140 |