| Zip Code | City | Population ↓ |
|---|---|---|
| 62233 | Chester | 8,217 |
| 62286 | Sparta | 5,372 |
| 62288 | Steeleville | 2,701 |
| 62272 | Percy | 1,898 |
| 62242 | Evansville | 1,534 |
| 62277 | Prairie Du Rocher | 1,007 |
| 62241 | Ellis Grove | 900 |
| 62292 | Tilden | 824 |
| 62217 | Baldwin | 718 |
| 62297 | Walsh | 338 |
| 62261 | Modoc | 12 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Randolph County, Illinois (US Census).