| Locality | Post Code |
|---|---|
| Alleghany, Sierra | 95910 |
| Bassetts, Sierra | 96125 |
| Calpine, Sierra | 96124 |
| Downieville, Sierra | 95936 |
| Forest, Sierra | 95910 |
| Goodyears Bar, Sierra | 95944 |
| Loyalton, Sierra | 96118 |
| Sattley, Sierra | 96124 |
| Sierra City, Sierra | 96125 |
| Sierraville, Sierra | 96126 |