| Zip Code : | 21045 |
| City : | Columbia, Ellicott City |
| County : | Howard County |
| State : | Maryland (MD) |
| | |
| Land Area : | 9.71 sq mi |
| Water Area : | 0.09 sq mi |
| Latitude : | 39.2060417 |
| Longitude : | -76.8282341 |
| | |
| Population (2010): | 38,288 |
| Population Estimate (2012) : | 40,367 |
| Population Density : | 3,944.77/sq mi |
| Housing Units (2012) : | 15,283 |
| Median Household Income (2012) : | $93,297 (Maryland : $72,999, USA : $53,046) |
| Median Family Income (2012) : | $103,456 (Maryland : $88,092, USA : $64,585) |
| Median House Price (2012) : | $350,500 (Maryland : $304,900, USA : $181,400) |