| Aklan Village, Diffun |
3401 |
| Andres Bonifacio, Diffun |
3401 |
| Aurora East, Diffun |
3401 |
| Aurora West, Diffun |
3401 |
| Baguio Village, Diffun |
3401 |
| Balagbag, Diffun |
3401 |
| Bannawag, Diffun |
3401 |
| Cajel, Diffun |
3401 |
| Campamento, Diffun |
3401 |
| Diego Silang, Diffun |
3401 |
| Don Faustino Pagaduan, Diffun |
3401 |
| Don Mariano Perez, Sr., Diffun |
3401 |
| Doña Imelda, Diffun |
3401 |
| Dumanisi, Diffun |
3401 |
| Gabriela Silang, Diffun |
3401 |
| Gregorio Pimentel, Diffun |
3401 |
| Gulac, Diffun |
3401 |
| Guribang, Diffun |
3401 |
| Ifugao Village, Diffun |
3401 |
| Isidro Paredes, Diffun |
3401 |
| Liwayway, Diffun |
3401 |
| Luttuad, Diffun |
3401 |
| Magsaysay, Diffun |
3401 |
| Makate, Diffun |
3401 |
| Maria Clara, Diffun |
3401 |
| Rafael Palma, Diffun |
3401 |