13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 42345 | Greenville | 11,496 |
| 42330 | Central City | 9,354 |
| 42325 | Bremen | 1,744 |
| 42337 | Drakesboro | 1,611 |
| 42324 | Belton | 1,120 |
| 42344 | Graham | 1,042 |
| 42367 | Powderly | 1,023 |
| 42323 | Beechmont | 909 |
| 42339 | Dunmor | 878 |
| 42321 | Beech Creek | 578 |
| 42326 | Browder | 294 |
| 42374 | South Carrollton | 134 |
| 42332 | Cleaton | 59 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Muhlenberg County, Kentucky (US Census).