| Zip Code : | 61201 |
| City : | Milan village, Rock Island city, Rock Island Arsenal |
| County : | Rock Island County |
| State : | Illinois (IL) |
| | |
| Land Area : | 18.05 sq mi |
| Water Area : | 2.00 sq mi |
| Latitude : | 41.4775590 |
| Longitude : | -90.5756277 |
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| Population (2010): | 39,116 |
| Population Estimate (2012) : | 38,943 |
| Population Density : | 2,166.65/sq mi |
| Housing Units (2012) : | 17,464 |
| Median Household Income (2012) : | $42,771 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $57,400 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $98,800 (Illinois : $190,800, USA : $181,400) |