Barbaza comprises 39 barangays with an estimated population of 23,408. 35 of its barangays (90%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baghari | 431 | 0 | Dead zone: no towers from any source |
| Bahuyan | 727 | 2 | Crowdsourced signal only (no registered tower) |
| Beri | 874 | 0 | Dead zone: no towers from any source |
| Biga-a | 223 | 0 | Dead zone: no towers from any source |
| Binangbang | 309 | 0 | Dead zone: no towers from any source |
| Binangbang Centro | 1,337 | 0 | Dead zone: no towers from any source |
| Binanu-an | 325 | 0 | Dead zone: no towers from any source |
| Cadiao | 358 | 0 | Dead zone: no towers from any source |
| Calapadan | 852 | 0 | Dead zone: no towers from any source |
| Capoyuan | 2,207 | 0 | Dead zone: no towers from any source |
| Cubay | 427 | 0 | Dead zone: no towers from any source |
| Embrangga-an | 176 | 0 | Dead zone: no towers from any source |
| Esparar | 895 | 0 | Dead zone: no towers from any source |
| Gua | 682 | 0 | Dead zone: no towers from any source |
| Idao | 344 | 0 | Dead zone: no towers from any source |
| Igpalge | 910 | 0 | Dead zone: no towers from any source |
| Igtunarum | 237 | 0 | Dead zone: no towers from any source |
| Integasan | 157 | 0 | Dead zone: no towers from any source |
| Ipil | 1,051 | 1 | Crowdsourced signal only (no registered tower) |
| Jinalinan | 1,102 | 0 | Dead zone: no towers from any source |
| Lanas | 175 | 0 | Dead zone: no towers from any source |
| Langcaon (Evelio Javier) | 722 | 0 | Dead zone: no towers from any source |
| Lisub | 1,195 | 0 | Dead zone: no towers from any source |
| Lombuyan | 905 | 0 | Dead zone: no towers from any source |
| Mablad | 666 | 0 | Dead zone: no towers from any source |
| Magtulis | 237 | 0 | Dead zone: no towers from any source |
| Marigne | 78 | 0 | Dead zone: no towers from any source |
| Mayabay | 213 | 0 | Dead zone: no towers from any source |
| Mayos | 169 | 0 | Dead zone: no towers from any source |
| Nalusdan | 851 | 0 | Dead zone: no towers from any source |
| Narirong | 170 | 0 | Dead zone: no towers from any source |
| Palma | 769 | 2 | Crowdsourced signal only (no registered tower) |
| Poblacion | 969 | 0 | Dead zone: no towers from any source |
| San Antonio | 1,498 | 0 | Dead zone: no towers from any source |
| San Ramon | 48 | 0 | Dead zone: no towers from any source |
| Soligao | 119 | 0 | Dead zone: no towers from any source |
| Tabongtabong | 274 | 0 | Dead zone: no towers from any source |
| Tig-Alaran | 111 | 0 | Dead zone: no towers from any source |
| Yapo | 615 | 1 | Crowdsourced signal only (no registered tower) |