10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 68979 | Sutton | 1,572 |
| 68944 | Harvard | 1,252 |
| 68933 | Clay Center | 851 |
| 68935 | Edgar | 726 |
| 68941 | Glenvil | 683 |
| 68980 | Trumbull | 561 |
| 68938 | Fairfield | 532 |
| 68975 | Saronville | 88 |
| 68452 | Ong | 67 |
| 68954 | Inland | 43 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Clay County, Nebraska (US Census).