| ZIP Code | 90721 |
| ZIP Code Name | Los Alamitos |
| Primary County | Orange County |
| ZIP Code Type | PO Box |
| Current Time | PDT |
90721 is a United States ZIP Code located in Los Alamitos California. Portions of 90721 are also in . 90721 is entirely within Orange County. 90721 is within Metro Los Angeles.
The current unemployment level in 90721 is 3.2%.| Coordinates | 33.80802536,-118.06925964 |
| Adjacent ZIP Codes | |
| Cities/Towns in 90721 | |
| 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 90721 | |
| California State Senate Districts in 90721 | |
| California State Assembly Districts in 90721 |
| School Districts in 90721 |