| Locality | Post Code |
|---|---|
| Canton, Lewis | 63435 |
| Deer Ridge, Lewis | 63447 |
| Durham, Lewis | 63438 |
| Ewing, Lewis | 63440 |
| La Belle, Lewis | 63447 |
| La Grange, Lewis | 63448 |
| Lewistown, Lewis | 63452 |
| Maywood, Lewis | 63454 |
| Monticello, Lewis | 63457 |
| Steffenville, Lewis | 63447 |
| Taylor, Lewis | 63471 |
| Tolona, Lewis | 63452 |
| Williamstown, Lewis | 63473 |