ZIP Code 20731 is located in Capitol Heights Maryland. 20731 is entirely within Prince Georges County. Regionally, it is located in Metro DC.
| ZIP Code Name | Capitol Heights |
| Primary County | Prince Georges County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 38.88502884,-76.91061401 |
| Adjacent ZIP Codes | |
| Region | Metro DC |
| Metropolitan/Micropolitan Stat Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |