| Postal Code | 440 01 |
| Postal Code Name | Louny |
| Region | Ústecký Region |
| District | Louny District |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 270 06 270 07 270 54 270 55 273 73 273 74 410 02 411 15 411 16 411 19 411 20 418 04 434 01 435 26 438 01 439 01 439 02 439 03 439 04 439 05 439 06 439 07 439 08 439 09 439 14 439 15 439 21 439 22 439 23 439 24 439 26 439 42 439 49 439 65 439 67 439 68 439 69 |