ZIP Code 21018 is located in Benson Maryland. 21018 is entirely within Harford County. Regionally, it is located in Metro Baltimore.
| ZIP Code Name | Benson |
| Primary County | Harford County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 39.51169968,-76.37393188 |
| Adjacent ZIP Codes | |
| Region | Metro Baltimore |
| Metropolitan/Micropolitan Stat Area | Baltimore-Columbia-Towson, MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |