ZIP Code 21503 is located in Cumberland Maryland. 21503 is entirely within Allegany County. Regionally, 21503 is located in the Hagerstown Area.
| ZIP Code Name | Cumberland |
| Primary County | Allegany County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 39.63720703,-78.76248169 |
| Adjacent ZIP Codes | |
| Region | Hagerstown Area |
| Metropolitan/Micropolitan Stat Area | Cumberland, MD-WV |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 0.00085941 Square Miles |
| School Districts in 21503 | |
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| Middle Schools in 21503 | |
| High Schools in 21503 |