12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62864 | Mount Vernon | 22,779 |
| 62898 | Woodlawn | 1,968 |
| 62846 | Ina | 1,798 |
| 62814 | Bluford | 1,668 |
| 62830 | Dix | 1,416 |
| 62810 | Belle Rive | 1,188 |
| 62872 | Opdyke | 1,153 |
| 62816 | Bonnie | 1,133 |
| 62889 | Texico | 1,066 |
| 62893 | Walnut Hill | 926 |
| 62894 | Waltonville | 782 |
| 62883 | Scheller | 693 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Jefferson County, Illinois (US Census).