| Zip Code : | 21012 |
| City : | Arnold, Cape St. Claire, Severna Park |
| County : | Anne Arundel County |
| State : | Maryland (MD) |
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| Land Area : | 9.76 sq mi |
| Water Area : | 2.73 sq mi |
| Latitude : | 39.0468350 |
| Longitude : | -76.4961328 |
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| Population (2010): | 21,317 |
| Population Estimate (2012) : | 20,784 |
| Population Density : | 2,183.95/sq mi |
| Housing Units (2012) : | 8,140 |
| Median Household Income (2012) : | $102,215 (Maryland : $72,999, USA : $53,046) |
| Median Family Income (2012) : | $121,336 (Maryland : $88,092, USA : $64,585) |
| Median House Price (2012) : | $407,800 (Maryland : $304,900, USA : $181,400) |