| Locality | Post Code |
|---|---|
| Bethlehem, Clark | 47104 |
| Borden, Clark | 47106 |
| Cementville, Clark | 47129, 47130 |
| Charlestown, Clark | 47111 |
| Clarksville, Clark | 47129, 47131 |
| Henryville, Clark | 47126 |
| Jeffersonville, Clark | 47130, 47131 |
| Marysville, Clark | 47141 |
| Memphis, Clark | 47143 |
| Nabb, Clark | 47147 |
| New Washington, Clark | 47162 |
| Otisco, Clark | 47163 |
| Sellersburg, Clark | 47172 |
| Speed, Clark | 47172 |
| Starlight, Clark | 47106 |
| Utica, Clark | 47130 |
| Watson, Clark | 47130 |