7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62839 | Flora | 6,183 |
| 62858 | Louisville | 3,554 |
| 62899 | Xenia | 2,022 |
| 62824 | Clay City | 1,485 |
| 62426 | Edgewood | 778 |
| 62434 | Ingraham | 191 |
| 62879 | Sailor Springs | 28 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Clay County, Illinois (US Census).