10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 61455 | Macomb | 17,653 |
| 61422 | Bushnell | 3,042 |
| 62326 | Colchester | 2,315 |
| 61420 | Blandinsville | 1,002 |
| 61440 | Industry | 774 |
| 61438 | Good Hope | 691 |
| 61470 | Prairie City | 505 |
| 61411 | Adair | 346 |
| 61416 | Bardolph | 247 |
| 61475 | Sciota | 192 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in McDonough County, Illinois (US Census).