| Postal Code | 10-602 |
| Postal Code Name | Olsztyn |
| Voivodeship | Warmian-Masurian Voivodeship |
| County | Olsztyn |
| Timezone | Central European Time (CET) |
| Adjacent Postal Codes | 10-053 10-054 10-091 10-437 10-455 10-457 10-601 10-603 10-604 10-606 10-608 10-609 10-616 10-617 10-619 10-621 10-622 10-626 10-629 10-630 10-640 10-660 10-664 10-672 10-675 10-685 10-686 10-687 10-689 |