12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62864 | Mount Vernon | 23,061 |
| 62898 | Woodlawn | 2,018 |
| 62846 | Ina | 1,845 |
| 62814 | Bluford | 1,724 |
| 62830 | Dix | 1,369 |
| 62810 | Belle Rive | 1,218 |
| 62816 | Bonnie | 1,156 |
| 62872 | Opdyke | 1,142 |
| 62889 | Texico | 1,053 |
| 62893 | Walnut Hill | 922 |
| 62894 | Waltonville | 814 |
| 62883 | Scheller | 599 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Jefferson County, Illinois (US Census).