| Locality | Post Code |
|---|---|
| Argos, Marshall | 46501 |
| Bourbon, Marshall | 46504 |
| Bremen, Marshall | 46506 |
| Burr Oak, Marshall | 46511 |
| Culver, Marshall | 46511 |
| Donaldson, Marshall | 46513 |
| Inwood, Marshall | 46563 |
| Lapaz, Marshall | 46537 |
| Plymouth, Marshall | 46563 |
| Tippecanoe, Marshall | 46570 |
| Tyner, Marshall | 46572 |