100 Smallest ZIP Codes in the United States by Population in Johnson County, Illinois
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Johnson County, Illinois.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 62943 | GRANTSBURG | IL | 312 |
| 2 | 62967 | NEW BURNSIDE | IL | 344 |
| 3 | 62923 | CYPRESS | IL | 404 |
| 4 | 62985 | SIMPSON | IL | 998 |
| 5 | 62972 | OZARK | IL | 1,128 |
| 6 | 62912 | BUNCOMBE | IL | 1,668 |
| 7 | 62939 | GOREVILLE | IL | 2,693 |
| 8 | 62995 | VIENNA | IL | 6,408 |