Cabucgayan comprises 13 barangays with an estimated population of 19,560. 11 of its barangays (85%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balaquid | 1,293 | 0 | Dead zone: no towers from any source |
| Baso | 1,530 | 0 | Dead zone: no towers from any source |
| Bunga | 5,035 | 7 | Crowdsourced signal only (no registered tower) |
| Caanibongan | 284 | 0 | Dead zone: no towers from any source |
| Casiawan | 763 | 0 | Dead zone: no towers from any source |
| Esperanza (Pob.) | 1,408 | 0 | Dead zone: no towers from any source |
| Langgao | 895 | 0 | Dead zone: no towers from any source |
| Libertad | 860 | 0 | Dead zone: no towers from any source |
| Looc | 3,008 | 2 | Crowdsourced signal only (no registered tower) |
| Magbangon (Pob.) | 1,867 | 0 | Dead zone: no towers from any source |
| Pawikan | 1,341 | 0 | Dead zone: no towers from any source |
| Salawad | 434 | 0 | Dead zone: no towers from any source |
| Talibong | 842 | 0 | Dead zone: no towers from any source |