ZIP Code 21720 is located in Cavetown Maryland. 21720 is entirely within Washington County. Regionally, 21720 is located in the Hagerstown Area.
| ZIP Code Name | Cavetown |
| Primary County | Washington County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 39.64455795,-77.58008575 |
| Adjacent ZIP Codes | |
| Region | Hagerstown Area |
| Metropolitan/Micropolitan Stat Area | Hagerstown-Martinsburg, MD-WV |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| School Districts in 21720 | |
| Elementary Schools in 21720 | |
| Middle Schools in 21720 | |
| High Schools in 21720 |