ZIP Code
6131
Type
Municipality
Barangays
13
Population
82,500
Barangays under ZIP 6131
La Castellana is a 1st-class Municipality in the province of Negros Occidental, Negros Island Region (NIR), Philippines. Based on 2024 PSA data, it has a population of 82,500 residents.
Barangays under ZIP 6131
13 total| Biaknabato 6131 | Cabacungan 6131 | Cabagnaan 6131 |
| Camandag 6131 | Lalagsan 6131 | Manghanoy 6131 |
| Mansalanao 6131 | Masulog 6131 | Nato 6131 |
| Puso 6131 | Robles 6131 | Sag-Ang 6131 |
| Talaptap 6131 |
Barangays under ZIP 6131
Bacolod City
Highly Urbanized City
6100
Bago City
Component City
6101
Cadiz City
Component City
6121
Calatrava
Municipality
6126
Candoni
Municipality
6110
Cauayan
Municipality
3305
Don Salvador Benedicto
Municipality
1401
Enrique B. Magalona
Municipality
6118
Escalante City
Component City
6124
Himamaylan City
Component City
6108
About ZIP Code 6131
ZIP code 6131 is the Philippine postal code assigned to La Castellana, a municipality in the province of Negros Occidental, Western Visayas, . Based on PSA census data, La Castellana has a population of 82,500. Its Philippine Standard Geographic Code (PSGC) is 1804517000. This postal code is used for mail delivery, logistics, and address verification across all 13 barangays within La Castellana.