| City : | Markham City |
| County : | Cook County |
| State : | Illinois (IL) |
| Land Area : | 5.31 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 41.6000612 |
| Longitude : | -87.6908129 |
| Population (2010): | 12,508 |
| Population Estimate (2012) : | 12,514 |
| Population Density : | 2,356.45/sq mi |
| Housing Units (2012) : | 4,384 |
| Median Household Income (2012) : | $44,730 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $49,255 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $111,500 (Illinois : $190,800, USA : $181,400) |