7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 65301 | Sedalia | 35,091 |
| 65337 | La Monte | 1,952 |
| 65332 | Green Ridge | 1,949 |
| 65350 | Smithton | 1,455 |
| 65334 | Hughesville | 1,094 |
| 65333 | Houstonia | 658 |
| 65335 | Ionia | 175 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Pettis County, Missouri (US Census).