| County : | Calhoun County |
| State : | Illinois (IL) |
| Land Area : | 253.82 sq mi |
| Water Area : | 29.75 sq mi |
| Latitude : | 39.1642619 |
| Longitude : | -90.6662949 |
| Population (2010): | 5,089 |
| Population Estimate (2012) : | 5,065 |
| Population Density : | 20.05/sq mi |
| Housing Units (2012) : | 2,835 |
| Median Household Income (2012) : | $47,399 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $60,417 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $115,600 (Illinois : $190,800, USA : $181,400) |
Calhoun County Cities / Towns
| Batchtown Village (214) | Brussels Village (141) | Hamburg Village (128) |
| Hardin Village (967) | Kampsville Village (328) |
Calhoun County Zip Codes
| 62006 (648) | 62013 (552) | 62036 (704) |
| 62045 (647) | 62047 (1,555) | 62053 (650) |
| 62065 (97) | 62070 (37) | 62355 (820) |