88 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 92683 | Westminster | 90,140 |
| 92804 | Anaheim | 83,435 |
| 92704 | Santa Ana | 80,408 |
| 92805 | Anaheim | 74,336 |
| 90631 | La Habra | 68,615 |
| 92630 | Lake Forest | 66,461 |
| 92677 | Laguna Niguel | 64,023 |
| 92618 | Irvine | 62,296 |
| 92703 | Santa Ana | 62,223 |
| 92620 | Irvine | 61,744 |
| 92801 | Anaheim | 61,218 |
| 92627 | Costa Mesa | 60,751 |
| 92707 | Santa Ana | 59,213 |
| 92647 | Huntington Beach | 58,794 |
| 92708 | Fountain Valley | 56,358 |
| 92646 | Huntington Beach | 55,814 |
| 92780 | Tustin | 54,495 |
| 92840 | Garden Grove | 54,475 |
| 92656 | Aliso Viejo | 52,645 |
| 92870 | Placentia | 52,384 |
| 92833 | Fullerton | 52,038 |
| 92626 | Costa Mesa | 50,569 |
| 92886 | Yorba Linda | 49,919 |
| 90630 | Cypress | 49,565 |
| 92705 | Santa Ana | 48,680 |
| 92701 | Santa Ana | 48,272 |
| 90620 | Buena Park | 46,992 |
| 92691 | Mission Viejo | 46,618 |
| 92692 | Mission Viejo | 46,568 |
| 92843 | Garden Grove | 46,553 |
| 92648 | Huntington Beach | 45,521 |
| 92867 | Orange | 44,003 |
| 92688 | Rancho Santa Margarita | 43,937 |
| 92802 | Anaheim | 43,698 |
| 92821 | Brea | 42,196 |
| 92806 | Anaheim | 40,528 |
| 92807 | Anaheim | 37,270 |
| 92706 | Santa Ana | 37,191 |
| 92869 | Orange | 36,684 |
| 92831 | Fullerton | 35,831 |
| 90621 | Buena Park | 35,735 |
| 92649 | Huntington Beach | 35,504 |
| 92694 | Ladera Ranch | 35,019 |
| 92675 | San Juan Capistrano | 34,998 |
| 92660 | Newport Beach | 34,788 |
| 92612 | Irvine | 33,706 |
| 92841 | Garden Grove | 33,514 |
| 90680 | Stanton | 31,949 |
| 92679 | Trabuco Canyon | 30,966 |
| 92782 | Tustin | 29,947 |
| 92673 | San Clemente | 29,828 |
| 92614 | Irvine | 29,617 |
| 92653 | Laguna Hills | 29,596 |
| 92604 | Irvine | 27,750 |
| 92868 | Orange | 27,390 |
| 92602 | Irvine | 27,358 |
| 92835 | Fullerton | 26,753 |
| 92832 | Fullerton | 26,364 |
| 92629 | Dana Point | 26,198 |
| 92606 | Irvine | 24,499 |
| 90740 | Seal Beach | 24,382 |
| 90720 | Los Alamitos | 24,021 |
| 92651 | Laguna Beach | 23,477 |
| 92844 | Garden Grove | 22,719 |
| 92617 | Irvine | 22,172 |
| 92663 | Newport Beach | 21,584 |
| 92865 | Orange | 20,897 |
| 92808 | Anaheim | 20,829 |
| 92887 | Yorba Linda | 19,985 |
| 92603 | Irvine | 19,264 |
| 92637 | Laguna Woods | 17,342 |
| 92845 | Garden Grove | 15,484 |
| 90623 | La Palma | 15,369 |
| 92866 | Orange | 14,776 |
| 92610 | Foothill Ranch | 13,182 |
| 92625 | Corona Del Mar | 12,328 |
| 92657 | Newport Coast | 10,224 |
| 92655 | Midway City | 8,101 |
| 92624 | Capistrano Beach | 6,685 |
| 92861 | Villa Park | 5,776 |
| 92823 | Brea | 5,141 |
| 92661 | Newport Beach | 3,095 |
| 92662 | Newport Beach | 2,285 |
| 92676 | Silverado | 1,967 |
| 92678 | Trabuco Canyon | 668 |
| 90743 | Surfside | 478 |
| 90742 | Sunset Beach | 385 |
| 92697 | Irvine | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 88 ZCTAs in Orange County, California (US Census).