Randolph County, Illinois ZIP codes
12 ZIP codes are in Randolph County, plus 7 that cross in from neighboring counties.
- ZIP codes
- 12
- Population in these ZIPs
- 23,404
- Avg. median income
- $71,200population-weighted
- Cities & towns
- 12
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Randolph County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 62217 | Baldwin | 767 | $84,615 | $123,600 |
| 62233 | Chester | 8,326 | $84,556 | $131,200 |
| 62241 | Ellis Grove | 879 | $83,438 | $167,100 |
| 62242 | Evansville | 1,660 | $60,400 | $144,900 |
| 62259 PO Box | Menard | — | — | — |
| 62261 | Modoc | 80 | — | — |
| 62272 | Percy | 1,521 | $50,938 | $94,600 |
| 62277 | Prairie Du Rocher | 940 | $67,969 | $161,800 |
| 62286 | Sparta | 5,491 | $61,220 | $128,600 |
| 62288 | Steeleville | 2,820 | $67,159 | $167,600 |
| 62292 | Tilden | 762 | $47,857 | $66,100 |
| 62297 | Walsh | 158 | $90,938 | $195,800 |
ZIP codes partly in Randolph County
These ZIP codes are mostly in a neighboring county but cover part of Randolph County.
| ZIP code | City | State | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|---|
| 62237 | Coulterville | IL | Perry County | 2,367 | $55,208 | $146,200 |
| 62257 | Marissa | IL | St. Clair County | 2,046 | $78,750 | $109,400 |
| 62278 | Red Bud | IL | Monroe County | 6,281 | $79,688 | $252,800 |
| 62280 | Rockwood | IL | Jackson County | 421 | $62,353 | $169,500 |
| 62907 | Ava | IL | Jackson County | 2,013 | $84,293 | $177,600 |
| 62916 | Campbell Hill | IL | Jackson County | 925 | $85,694 | $163,700 |
| 63673 | Saint Mary | MO | Ste. Genevieve County | 2,340 | $77,931 | $263,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Randolph County
Nearby counties
Frequently asked questions
How many ZIP codes are in Randolph County, Illinois?
12 ZIP codes are mainly in Randolph County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Randolph County?
ZIP codes in Randolph County use the city names Baldwin, Chester, Ellis Grove, Evansville, Menard, Modoc, Percy, Prairie Du Rocher, Sparta, Steeleville, Tilden and Walsh.