9 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66512 | Meriden | 3,678 |
| 66054 | McLouth | 2,777 |
| 66088 | Valley Falls | 2,697 |
| 66066 | Oskaloosa | 2,432 |
| 66073 | Perry | 2,263 |
| 66070 | Ozawkie | 1,944 |
| 66060 | Nortonville | 1,325 |
| 66097 | Winchester | 995 |
| 66429 | Grantville | 379 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Jefferson County, Kansas (US Census).