18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 64118 | Kansas City | 42,213 |
| 64068 | Liberty | 37,466 |
| 64119 | Kansas City | 32,615 |
| 64155 | Kansas City | 28,754 |
| 64157 | Kansas City | 22,429 |
| 64116 | Kansas City | 17,535 |
| 64060 | Kearney | 16,291 |
| 64024 | Excelsior Springs | 15,587 |
| 64117 | Kansas City | 14,800 |
| 64089 | Smithville | 14,060 |
| 64156 | Kansas City | 7,977 |
| 64158 | Kansas City | 7,267 |
| 64048 | Holt | 4,372 |
| 64161 | Kansas City | 360 |
| 64166 | Kansas City | 273 |
| 64167 | Kansas City | 267 |
| 64072 | Missouri City | 257 |
| 64165 | Kansas City | 223 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Clay County, Missouri (US Census).