As a box code, 6058 is used for 5 post office box locations.
PO Boxes using 6058
| Suburb | Town | Province |
|---|---|---|
| Bethelsdorp Ext 27B | Gqeberha (Port Elizabeth) | Eastern Cape |
| Booysens Park Ext 2 | Gqeberha (Port Elizabeth) | Eastern Cape |
| Booysens Park Ext 3 | Gqeberha (Port Elizabeth) | Eastern Cape |
| Fernwood Park Ext 29 | Gqeberha (Port Elizabeth) | Eastern Cape |
| Saltville | Gqeberha (Port Elizabeth) | Eastern Cape |