7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62995 | Vienna | 6,477 |
| 62939 | Goreville | 3,072 |
| 62912 | Buncombe | 1,534 |
| 62972 | Ozark | 891 |
| 62923 | Cypress | 393 |
| 62943 | Grantsburg | 324 |
| 62967 | New Burnside | 310 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Johnson County, Illinois (US Census).