| Zip Code : | 62551 |
| City : | Harristown village, Niantic village |
| County : | Macon County |
| State : | Illinois (IL) |
| | |
| Land Area : | 26.85 sq mi |
| Water Area : | 0.06 sq mi |
| Latitude : | 39.8553745 |
| Longitude : | -89.1589269 |
| | |
| Population (2010): | 837 |
| Population Estimate (2012) : | 903 |
| Population Density : | 31.17/sq mi |
| Housing Units (2012) : | 366 |
| Median Household Income (2012) : | $51,000 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $60,859 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $108,200 (Illinois : $190,800, USA : $181,400) |