| Locality | Post Code |
|---|---|
| Anderson, Shasta | 96007 |
| Bella Vista, Shasta | 96008 |
| Big Bend, Shasta | 96011 |
| Burney, Shasta | 96013 |
| Cassel, Shasta | 96016 |
| Castella, Shasta | 96017 |
| Central Valley, Shasta | 96019 |
| Cottonwood, Shasta | 96022 |
| Fall River Mills, Shasta | 96028 |
| French Gulch, Shasta | 96033 |
| Hat Creek, Shasta | 96040 |
| Igo, Shasta | 96047 |
| Johnson Park, Shasta | 96013 |
| Keswick, Shasta | 96001 |
| Lakehead, Shasta | 96051 |
| Little Valley, Shasta | 96056 |
| McArthur, Shasta | 96056 |
| Millville, Shasta | 96062 |
| Montgomery Creek, Shasta | 96065 |
| O'Brien, Shasta | 96070 |
| Oak Run, Shasta | 96069 |
| Old Station, Shasta | 96071 |
| Olinda, Shasta | 96007 |
| Ono, Shasta | 96047 |
| Palo Cedro, Shasta | 96073 |
| Pittville, Shasta | 96056 |