| Place | Post Code |
|---|---|
| Allendale North, Light | 5373 |
| Bagot Well, Light | 5373 |
| Bethel, Light | 5373 |
| Buchfelde, Light | 5118 |
| Daveyston, Light | 5355 |
| Ebenezer, Light | 5355 |
| Fords, Light | 5373 |
| Freeling, Light | 5372 |
| Gawler Belt, Light | 5118 |
| Gawler River, Light | 5118 |
| Gomersal, Light | 5352 |
| Greenock, Light | 5360 |
| Hamilton, Light | 5373 |
| Hansborough, Light | 5374 |
| Hewett, Light | 5118 |
| Kangaroo Flat, Light | 5118 |
| Kapunda, Light | 5373 |
| Kingsford, Light | 5118 |
| Koonunga, Light | 5373 |
| Linwood, Light | 5410 |
| Magdala, Light | 5400 |
| Marananga, Light | 5355 |
| Moppa, Light | 5355 |
| Morn Hill, Light | 5371 |
| Nain, Light | 5360 |
| Pinkerton Plains, Light | 5400 |