ZIP Code 20635 is located in Helen Maryland. 20635 is entirely within Saint Marys County. Regionally, it is located in Metro DC.
| ZIP Code Name | Helen |
| Primary County | Saint Marys County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 38.38382339,-76.72037506 |
| Adjacent ZIP Codes | |
| Region | Metro DC |
| Metropolitan/Micropolitan Stat Area | California-Lexington Park, MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |