| Zip Code | City | Population ↓ |
|---|---|---|
| 32068 | Middleburg | 57,372 |
| 32073 | Orange Park | 42,135 |
| 32065 | Orange Park | 40,035 |
| 32043 | Green Cove Springs | 31,705 |
| 32003 | Fleming Island | 29,810 |
| 32656 | Keystone Heights | 14,702 |
| 32079 | Penney Farms | 439 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Clay County, Florida (US Census).