18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 64118 | Kansas City | 42,897 |
| 64068 | Liberty | 37,237 |
| 64119 | Kansas City | 32,294 |
| 64155 | Kansas City | 28,138 |
| 64157 | Kansas City | 21,610 |
| 64116 | Kansas City | 17,284 |
| 64060 | Kearney | 15,888 |
| 64024 | Excelsior Springs | 15,158 |
| 64117 | Kansas City | 15,017 |
| 64089 | Smithville | 13,818 |
| 64156 | Kansas City | 7,288 |
| 64158 | Kansas City | 7,091 |
| 64048 | Holt | 4,461 |
| 64161 | Kansas City | 347 |
| 64167 | Kansas City | 340 |
| 64166 | Kansas City | 296 |
| 64072 | Missouri City | 293 |
| 64165 | Kansas City | 273 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Clay County, Missouri (US Census).