ZIP Code 01931 is located in Gloucester Massachusetts. 01931 is entirely within Essex County. Regionally, it is located in Metro Boston.
| ZIP Code Name | Gloucester |
| Primary County | Essex County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 42.61436081,-70.66320038 |
| Adjacent ZIP Codes | |
| Region | Metro Boston |
| Metropolitan/Micropolitan Stat Area | Boston-Cambridge-Newton, MA-NH |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |