| Locality | Post Code |
|---|---|
| Royal Lakes, Macoupin | 62685 |
| Sawyerville, Macoupin | 62085 |
| Scottville, Macoupin | 62667 |
| Shipman, Macoupin | 62685 |
| Standard City, Macoupin | 62640 |
| Staunton, Macoupin | 62088 |
| Virden, Macoupin | 62690 |
| White City, Macoupin | 62069 |
| Williamson, Macoupin | 62088 |
| Wilsonville, Macoupin | 62093 |
| Womac, Macoupin | 62626 |
| Woodburn, Macoupin | 62014 |