| Locality | Post Code |
|---|---|
| Adna, Lewis | 98522 |
| Ajlune, Lewis | 98564 |
| Alpha, Lewis | 98570 |
| Boistfort, Lewis | 98532 |
| Bunker, Lewis | 98532 |
| Carlson, Lewis | 98355 |
| Carriage Hill, Lewis | 98336 |
| Centralia, Lewis | 98531 |
| Ceres, Lewis | 98532 |
| Chehalis, Lewis | 98532 |
| Cinebar, Lewis | 98533 |
| Claquato, Lewis | 98532 |
| Curtis, Lewis | 98538 |
| Doty, Lewis | 98539 |
| Dryad, Lewis | 98532 |
| Ethel, Lewis | 98542 |
| Evaline, Lewis | 98596 |
| Fords Prairie, Lewis | 98531 |
| Forest, Lewis | 98532 |
| Galvin, Lewis | 98544 |
| Glenoma, Lewis | 98336 |
| Grand Mound, Lewis | 98531 |
| Guerrier, Lewis | 98532 |
| Harmony, Lewis | 98585 |
| Kalber, Lewis | 98538 |
| Klaber, Lewis | 98538 |