32 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66062 | Olathe | 77,312 |
| 66061 | Olathe | 66,897 |
| 66212 | Overland Park | 32,806 |
| 66213 | Overland Park | 30,270 |
| 66215 | Lenexa | 26,001 |
| 66030 | Gardner | 25,625 |
| 66223 | Overland Park | 25,217 |
| 66216 | Shawnee | 25,051 |
| 66221 | Overland Park | 24,434 |
| 66208 | Prairie Village | 21,609 |
| 66210 | Overland Park | 19,881 |
| 66209 | Leawood | 19,452 |
| 66203 | Shawnee | 19,087 |
| 66204 | Overland Park | 18,931 |
| 66202 | Mission | 17,043 |
| 66226 | Shawnee | 16,165 |
| 66207 | Overland Park | 15,486 |
| 66219 | Lenexa | 13,843 |
| 66205 | Mission | 13,830 |
| 66214 | Overland Park | 12,513 |
| 66224 | Overland Park | 12,301 |
| 66206 | Leawood | 12,038 |
| 66085 | Stilwell | 10,906 |
| 66227 | Lenexa | 8,756 |
| 66220 | Lenexa | 8,135 |
| 66218 | Shawnee | 7,745 |
| 66018 | De Soto | 6,438 |
| 66211 | Leawood | 5,749 |
| 66217 | Shawnee | 5,427 |
| 66021 | Edgerton | 2,873 |
| 66031 | New Century | 610 |
| 66251 | Overland Park | 5 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 32 ZCTAs in Johnson County, Kansas (US Census).