ZIP Code 56999 is located in Parcel Return Service District of Columbia. 56999 is entirely within District of Columbia. Regionally, it is located in Metro DC.
| ZIP Code Name | Parcel Return Service |
| Primary County | District of Columbia |
| ZIP Code Type | Unique |
| Current Time | EDT |
| Coordinates | 38.91793823,-76.99324036 |
| Adjacent ZIP Codes | |
| Region | Metro DC |
| Metropolitan/Micropolitan Stat Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |