20104 is the ZIP Code for The Inspection Service Forensic Laboratory in Dulles, Virginia. 20104 is entirely within Loudoun County. Regionally, it is located in Metro DC.
| ZIP Code Name | Dulles |
| Organization | The Inspection Service Forensic Laboratory |
| Primary County | Loudoun County |
| ZIP Code Type | Unique |
| Current Time | EDT |
| Coordinates | 38.99601364,-77.45285034 |
| 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 |