| Area | Postcode | Post Office | State Code | State Name |
|---|---|---|---|---|
| Peti Surat 1 - 37 | 41700 | Klang | SGR | Selangor |
| Peti Surat 39 - 58 | 41700 | Klang | SGR | Selangor |
| Peti Surat 60 | 41700 | Klang | SGR | Selangor |
| Peti Surat 62 - 63 | 41700 | Klang | SGR | Selangor |
| Peti Surat 65 - 80 | 41700 | Klang | SGR | Selangor |
| Majlis Perbandaran Klang | 41700 | Klang | SGR | Selangor |