ZIP Code 91943 is located in La Mesa California. 91943 is entirely within San Diego County. Regionally, it is located in Metro San Diego.
| ZIP Code Name | La Mesa |
| Primary County | San Diego County |
| ZIP Code Type | PO Box |
| Current Time | PDT |
| Coordinates | 32.77857590,-117.00695038 |
| Adjacent ZIP Codes | |
| Region | Metro San Diego |
| Metropolitan/Micropolitan Stat Area | San Diego-Chula Vista-Carlsbad, CA |
| Time Zone | Pacific Daylight Time |
| IANA Timezone | America/Los_Angeles |
| US Congressional Districts in 91943 | |
| California State Senate Districts in 91943 | |
| California State Assembly Districts in 91943 |