Mayoyao comprises 27 barangays with an estimated population of 16,389. 26 of its barangays (96%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Aduyongan | 228 | 0 | Dead zone: no towers from any source |
| Alimit | 615 | 0 | Dead zone: no towers from any source |
| Ayangan | 398 | 0 | Dead zone: no towers from any source |
| Balangbang | 1,077 | 0 | Dead zone: no towers from any source |
| Banao | 900 | 0 | Dead zone: no towers from any source |
| Banhal | 440 | 0 | Dead zone: no towers from any source |
| Bato-Alatbang | 171 | 0 | Dead zone: no towers from any source |
| Bongan | 371 | 0 | Dead zone: no towers from any source |
| Buninan | 1,088 | 0 | Dead zone: no towers from any source |
| Chaya | 1,210 | 0 | Dead zone: no towers from any source |
| Chumang | 1,291 | 0 | Dead zone: no towers from any source |
| Epeng | 332 | 0 | Dead zone: no towers from any source |
| Guinihon | 335 | 0 | Dead zone: no towers from any source |
| Inwaloy | 1,270 | 0 | Dead zone: no towers from any source |
| Langayan | 161 | 0 | Dead zone: no towers from any source |
| Liwo | 795 | 0 | Dead zone: no towers from any source |
| Maga | 606 | 0 | Dead zone: no towers from any source |
| Magulon | 381 | 0 | Dead zone: no towers from any source |
| Mapawoy | 732 | 0 | Dead zone: no towers from any source |
| Mayoyao Proper | 233 | 0 | Dead zone: no towers from any source |
| Mongol | 203 | 0 | Dead zone: no towers from any source |
| Nalbu | 425 | 0 | Dead zone: no towers from any source |
| Nattum | 1,430 | 0 | Dead zone: no towers from any source |
| Palaad | 432 | 0 | Dead zone: no towers from any source |
| Poblacion | 782 | 0 | Dead zone: no towers from any source |
| Talboc | 299 | 0 | Dead zone: no towers from any source |
| Tulaed | 184 | 1 | Crowdsourced signal only (no registered tower) |