ZIP Code 46401 is located in Gary Indiana. 46401 is entirely within Lake County. Regionally, it is located in Metro Chicago.
| ZIP Code Name | Gary |
| Primary County | Lake County |
| ZIP Code Type | PO Box |
| Current Time | CDT |
| Coordinates | 41.58885574,-87.31752777 |
| Adjacent ZIP Codes | |
| Region | Metro Chicago |
| Metropolitan/Micropolitan Stat Area | Chicago-Naperville-Elgin, IL-IN-WI |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 0.00665294 Square Miles |