| Place | Post Code |
|---|---|
| Abelo, San Nicolas | 4207 |
| Alas-As, San Nicolas | 4207 |
| Balete, San Nicolas | 4207 |
| Baluk-Baluk, San Nicolas | 4207 |
| Bancoro, San Nicolas | 4207 |
| Bangin, San Nicolas | 4207 |
| Calangay, San Nicolas | 4207 |
| Hipit, San Nicolas | 4207 |
| Maabud North, San Nicolas | 4207 |
| Maabud South, San Nicolas | 4207 |
| Munlawin, San Nicolas | 4207 |
| Pansipit, San Nicolas | 4207 |
| Poblacion, San Nicolas | 4207 |
| Pulang-Bato, San Nicolas | 4207 |
| Santo Niño, San Nicolas | 4207 |
| Sinturisan, San Nicolas | 4207 |
| Tagudtod, San Nicolas | 4207 |
| Talang, San Nicolas | 4207 |