ZIP Code 21278 is located in Baltimore Maryland. 21278 is entirely within Baltimore City County. Regionally, it is located in Metro Baltimore.
| ZIP Code Name | Baltimore |
| Primary County | Baltimore City County |
| ZIP Code Type | Unique |
| Area Code(s) | 410 / 443 / 667 |
| Current Time | EDT |
| Coordinates | 39.29697037,-76.61283112 |
| Adjacent ZIP Codes | |
| Cities/Towns in 21278 | |
| Region | Metro Baltimore |
| Metropolitan/Micropolitan Stat Area | Baltimore-Columbia-Towson, MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 0.01182224 Square Miles |
| US Congressional Districts in 21278 | |
| Maryland State Senate Districts in 21278 | |
| Maryland State House of Delegates Districts in 21278 |
| School Districts in 21278 |