| Place | Post Code |
|---|---|
| Abgao, Maasin | 6600 |
| Acasia, Maasin | 6600 |
| Asuncion, Maasin | 6600 |
| Bactul I, Maasin | 6600 |
| Bactul II, Maasin | 6600 |
| Badiang, Maasin | 6600 |
| Bagtican, Maasin | 6600 |
| Basak, Maasin | 6600 |
| Bato I, Maasin | 6600 |
| Bato II, Maasin | 6600 |
| Batuan, Maasin | 6600 |
| Baugo, Maasin | 6600 |
| Bilibol, Maasin | 6600 |
| Bogo, Maasin | 6600 |
| Cabadiangan, Maasin | 6600 |
| Cabulihan, Maasin | 6600 |
| Cagnituan, Maasin | 6600 |
| Cambooc, Maasin | 6600 |
| Cansirong, Maasin | 6600 |
| Canturing, Maasin | 6600 |
| Canyuom, Maasin | 6600 |
| Combado, Maasin | 6600 |
| Dongon, Maasin | 6600 |
| Gawisan, Maasin | 6600 |
| Guadalupe, Maasin | 6600 |
| Hanginan, Maasin | 6600 |