11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62233 | Chester | 8,326 |
| 62286 | Sparta | 5,491 |
| 62288 | Steeleville | 2,820 |
| 62242 | Evansville | 1,660 |
| 62272 | Percy | 1,521 |
| 62277 | Prairie Du Rocher | 940 |
| 62241 | Ellis Grove | 879 |
| 62217 | Baldwin | 767 |
| 62292 | Tilden | 762 |
| 62297 | Walsh | 158 |
| 62261 | Modoc | 80 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Randolph County, Illinois (US Census).