State: California
County: Siskiyou
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 96014 | Callahan | CA | Siskiyou County | 163 | 39005 |
| 96023 | Dorris | CA | Siskiyou County | 1030 | |
| 96025 | Dunsmuir | CA | Siskiyou County | 1640 | |
| 96027 | Etna | CA | Siskiyou County | 1680 | |
| 96031 | Forks Of Salmon | CA | Siskiyou County | 70 | |
| 96032 | Fort Jones | CA | Siskiyou County | 1880 | |
| 96034 | Gazelle | CA | Siskiyou County | 210 | |
| 96037 | Greenview | CA | Siskiyou County | 374 | |
| 96038 | Grenada | CA | Siskiyou County | 560 | |
| 96039 | Happy Camp | CA | Siskiyou County | 780 | |
| 96044 | Hornbrook | CA | Siskiyou County | 700 | |
| 96050 | Klamath River | CA | Siskiyou County | 230 | |
| 96058 | Macdoel | CA | Siskiyou County | 640 | |
| 96057 | Mccloud | CA | Siskiyou County | 850 | |
| 96064 | Montague | CA | Siskiyou County | 3270 | |
| 96067 | Mount Shasta | CA | Siskiyou County | 6360 | |
| 96049 | Redding | CA | Siskiyou County | 2731 | |
| 96085 | Scott Bar | CA | Siskiyou County | 53 | |
| 96086 | Seiad Valley | CA | Siskiyou County | 180 | |
| 95568 | Somes Bar | CA | Siskiyou County | 144 | |
| 96134 | Tulelake | CA | Siskiyou County | 2060 | |
| 96094 | Weed | CA | Siskiyou County | 5070 | |
| 96097 | Yreka | CA | Siskiyou County | 8330 | |