| Official Zip Code Name | Arnold |
| Zip Code State | Maryland |
| Primary County: | Anne Arundel |
| Area Code | 667/410 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 78 ft. |
| Area | 9.779 Sqm. |
| Coordinates(Y,X) | 39.043002, -76.494210 |