| Locality | Post Code |
|---|---|
| Fairmount, Grant | 46928 |
| Fowlerton, Grant | 46930 |
| Gas City, Grant | 46933 |
| Jonesboro, Grant | 46938 |
| Landess, Grant | 46991 |
| Marion, Grant | 46952, 46953 |
| Matthews, Grant | 46957 |
| Sims, Grant | 46986 |
| Swayzee, Grant | 46986 |
| Sweetser, Grant | 46987 |
| Upland, Grant | 46989 |
| Van Buren, Grant | 46991 |