10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 61455 | Macomb | 17,317 |
| 61422 | Bushnell | 3,002 |
| 62326 | Colchester | 2,236 |
| 61420 | Blandinsville | 968 |
| 61440 | Industry | 744 |
| 61438 | Good Hope | 739 |
| 61470 | Prairie City | 488 |
| 61411 | Adair | 376 |
| 61416 | Bardolph | 204 |
| 61475 | Sciota | 180 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in McDonough County, Illinois (US Census).