| Postal Code | 05-220 |
| Postal Code Name | Zielonka |
| Voivodeship | Masovian Voivodeship |
| County | Wołomin County |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 00-910 04-407 04-408 04-410 04-412 04-423 04-430 04-434 04-435 04-436 04-438 04-461 04-498 05-070 05-075 05-079 05-091 05-200 05-230 05-270 05-304 05-311 05-326 |