| 96006 Adin | 530 | Modoc County | California (CA) |
| 96101 Alturas | 530 | Modoc County | California (CA) |
| 96101 Alturas Rancheria | 530 | Modoc County | California (CA) |
| 96101 California Pines | 530 | Modoc County | California (CA) |
| 96015 Canby | 530 | Modoc County | California (CA) |
| 96104 Cedarville | 530 | Modoc County | California (CA) |
| 96108 Davis Creek | 530 | Modoc County | California (CA) |
| 96110 Eagleville | 530 | Modoc County | California (CA) |
| 96112 Fort Bidwell | 530 | Modoc County | California (CA) |
| 96115 Lake City | 530 | Modoc County | California (CA) |
| 96116 Likely | 530 | Modoc County | California (CA) |
| 96054 Lookout | 530 | Modoc County | California (CA) |
| 96108 Willow Ranch | 530 | Modoc County | California (CA) |
| 96101 Xl Ranch Indian Reservation | 530 | Modoc County | California (CA) |