| County : | Randolph County |
| State : | Illinois (IL) |
| Land Area : | 575.50 sq mi |
| Water Area : | 21.70 sq mi |
| Latitude : | 38.0565149 |
| Longitude : | -89.8212096 |
| Population (2010): | 33,476 |
| Population Estimate (2012) : | 33,353 |
| Population Density : | 58.17/sq mi |
| Housing Units (2012) : | 13,707 |
| Median Household Income (2012) : | $48,383 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $60,538 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $89,300 (Illinois : $190,800, USA : $181,400) |
Randolph County Cities / Towns
| Baldwin Village (373) | Chester City (8,586) | Coulterville Village (945) |
| Ellis Grove Village (363) | Evansville Village (701) | Kaskaskia Village (14) |
| Percy Village (970) | Prairie du Rocher Village (604) | Red Bud City (3,698) |
| Rockwood Village (42) | Ruma Village (317) | Sparta City (4,302) |
| Steeleville Village (2,083) | Tilden Village (934) |
Randolph County Zip Codes
| 62217 (807) | 62233 (10,037) | 62237 (2,659) |
| 62241 (1,061) | 62242 (1,526) | 62257 (3,214) |
| 62261 (152) | 62272 (1,674) | 62277 (1,314) |
| 62278 (6,690) | 62280 (444) | 62286 (6,008) |
| 62288 (2,918) | 62292 (947) | 62297 (452) |
| 62907 (2,164) | 62916 (995) | 63673 (2,115) |