13 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 42345 | Greenville | 11,440 |
| 42330 | Central City | 9,367 |
| 42325 | Bremen | 2,045 |
| 42337 | Drakesboro | 1,683 |
| 42324 | Belton | 1,228 |
| 42367 | Powderly | 949 |
| 42323 | Beechmont | 852 |
| 42339 | Dunmor | 840 |
| 42344 | Graham | 763 |
| 42321 | Beech Creek | 553 |
| 42326 | Browder | 283 |
| 42374 | South Carrollton | 124 |
| 42332 | Cleaton | 20 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 13 ZCTAs in Muhlenberg County, Kentucky (US Census).