7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 65301 | Sedalia | 35,347 |
| 65332 | Green Ridge | 2,023 |
| 65337 | La Monte | 1,786 |
| 65350 | Smithton | 1,326 |
| 65334 | Hughesville | 1,080 |
| 65333 | Houstonia | 674 |
| 65335 | Ionia | 221 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Pettis County, Missouri (US Census).