ZIP Code 20885 is located in Gaithersburg Maryland. 20885 is entirely within Montgomery County. Regionally, it is located in Metro DC.
| ZIP Code Name | Gaithersburg |
| Primary County | Montgomery County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 39.13602448,-77.22620392 |
| 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 |