| Locality | Post Code |
|---|---|
| Big Clifty, Hardin | 42712 |
| Big Spring, Hardin | 40175 |
| Cecilia, Hardin | 42724 |
| Eastview, Hardin | 42732 |
| Elizabethtown, Hardin | 42701 |
| Flaherty, Hardin | 40175 |
| Fort Knox, Hardin | 40121 |
| Glendale, Hardin | 42740 |
| Meeting Creek, Hardin | 42732 |
| Radcliff, Hardin | 40160 |
| Rineyville, Hardin | 40162 |
| Sonora, Hardin | 42776 |
| Stephensburg, Hardin | 42724 |
| Summit, Hardin | 42732 |
| Upton, Hardin | 42784 |
| Vertrees, Hardin | 42724 |
| Vine Grove, Hardin | 40175 |
| West Point, Hardin | 40177 |
| White Mills, Hardin | 42788 |