18 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 64118 | Kansas City | 41,984 |
| 64068 | Liberty | 37,758 |
| 64119 | Kansas City | 33,199 |
| 64155 | Kansas City | 28,824 |
| 64157 | Kansas City | 23,030 |
| 64116 | Kansas City | 18,046 |
| 64060 | Kearney | 16,488 |
| 64024 | Excelsior Springs | 15,574 |
| 64117 | Kansas City | 14,919 |
| 64089 | Smithville | 14,380 |
| 64156 | Kansas City | 7,946 |
| 64158 | Kansas City | 7,317 |
| 64048 | Holt | 4,387 |
| 64161 | Kansas City | 292 |
| 64166 | Kansas City | 270 |
| 64167 | Kansas City | 243 |
| 64165 | Kansas City | 212 |
| 64072 | Missouri City | 205 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 18 ZCTAs in Clay County, Missouri (US Census).