Postal code 5600
Used by 3 suburbs in King William's Town, Eastern Cape.
- As street code
- 0
- As PO Box code
- 3
5600 as a PO Box code
| Suburb | Area | Street | PO Box |
|---|---|---|---|
| King William's Town | King William's Town | 5601 | 5600 |
| Siyalu | King William's Town | – | 5600 |
| Sweetwater | King William's Town | 5601 | 5600 |