| City : | Arnold |
| County : | Anne Arundel County, Lake County |
| State : | Maryland (MD) |
| | |
| Land Area : | 10.82 sq mi |
| Water Area : | 2.73 sq mi |
| Latitude : | 39.0428796 |
| Longitude : | -76.4968737 |
| | |
| Population (2010): | 23,106 |
| Population Estimate (2012) : | 22,626 |
| Population Density : | 2,135.91/sq mi |
| Housing Units (2012) : | 8,766 |
| Median Household Income (2012) : | $102,823 (Maryland : $72,999, USA : $53,046) |
| Median Family Income (2012) : | $121,612 (Maryland : $88,092, USA : $64,585) |
| Median House Price (2012) : | $399,200 (Maryland : $304,900, USA : $181,400) |