| Locality | Post Code |
|---|---|
| Playa, Orange | 92652 |
| Portola Hills, Orange | 92679 |
| Rancho Mission Viejo, Orange | 92694 |
| Rancho Santa Margarita, Orange | 92688 |
| Robinson Ranch, Orange | 92679 |
| Rossmoor, Orange | 90720 |
| San Clemente, Orange | 92672, 92673, 92674 |
| San Juan Capistrano, Orange | 92675 |
| San Juan Capo, Orange | 92675 |
| Santa Ana, Orange | 92701, 92703, 92704, 92705, 92706, … |
| Seal Beach, Orange | 90740 |
| Silverado, Orange | 92676 |
| South Main, Orange | 92707 |
| Stanton, Orange | 90680 |
| Sunkist, Orange | 92806 |
| Sunset Beach, Orange | 90742 |
| Surfside, Orange | 90743 |
| Trabuco, Orange | 92679 |
| Trabuco Canyon, Orange | 92679 |
| Tustin, Orange | 92780, 92782 |
| Villa Park, Orange | 92861, 92867 |
| Westminster, Orange | 92683, 92684 |
| Yorba Linda, Orange | 92886, 92887 |