ZIP Code 91121 is located in Pasadena California. 91121 is entirely within Los Angeles County. Regionally, it is located in Metro Los Angeles.
| ZIP Code Name | Pasadena |
| Primary County | Los Angeles County |
| ZIP Code Type | Unique |
| Current Time | PDT |
| Coordinates | 34.14988327,-118.09001160 |
| Adjacent ZIP Codes | |
| Region | Metro Los Angeles |
| Metropolitan/Micropolitan Stat Area | Los Angeles-Long Beach-Anaheim, CA |
| Time Zone | Pacific Daylight Time |
| IANA Timezone | America/Los_Angeles |