| Locality | Post Code |
|---|---|
| Braxton, Simpson | 39044 |
| D Lo, Simpson | 39062 |
| Harrisville, Simpson | 39082 |
| Magee, Simpson | 39111 |
| Mendenhall, Simpson | 39114 |
| Mount Olive, Simpson | 39119 |
| Pinola, Simpson | 39149 |
| Sanatorium, Simpson | 39111 |
| Sanitorium, Simpson | 39111 |
| Shivers, Simpson | 39149 |