| ZIP Code | 91031 |
| ZIP Code Name | South Pasadena |
| Primary County | Los Angeles County |
| ZIP Code Type | PO Box |
| Current Time | PDT |
91031 is a United States ZIP Code located in South Pasadena California. Portions of 91031 are also in . 91031 is entirely within Los Angeles County. 91031 is within Metro Los Angeles.
The current unemployment level in 91031 is 3.4%.| Coordinates | 34.11450195,-118.15312195 |
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| Cities/Towns in 91031 | |
| Region | Metro Los Angeles |
| Metropolitan/Micropolitan Stat Area | Los Angeles-Long Beach-Anaheim, CA |
| Time Zone | Pacific Daylight Time |
| IANA Timezone | America/Los_Angeles |
| US Congressional Districts in 91031 | |
| California State Senate Districts in 91031 | |
| California State Assembly Districts in 91031 |
| School Districts in 91031 | |
| Elementary Schools in 91031 | |
| High Schools in 91031 |