18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62626 | Carlinville | 7,911 |
| 62088 | Staunton | 6,482 |
| 62033 | Gillespie | 4,398 |
| 62690 | Virden | 3,878 |
| 62014 | Bunker Hill | 3,695 |
| 62640 | Girard | 3,342 |
| 62069 | Mount Olive | 3,102 |
| 62009 | Benld | 1,746 |
| 62685 | Shipman | 1,648 |
| 62674 | Palmyra | 1,319 |
| 62630 | Chesterfield | 783 |
| 62667 | Modesto | 547 |
| 62093 | Wilsonville | 473 |
| 62649 | Hettick | 416 |
| 62079 | Piasa | 370 |
| 62085 | Sawyerville | 195 |
| 62672 | Nilwood | 140 |
| 62023 | Eagarville | 138 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Macoupin County, Illinois (US Census).