Tayasan comprises 28 barangays with an estimated population of 44,392. 28 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bacong | 213 | 0 | Dead zone: no towers from any source |
| Bago | 968 | 0 | Dead zone: no towers from any source |
| Banga | 855 | 0 | Dead zone: no towers from any source |
| Cabulotan | 1,285 | 0 | Dead zone: no towers from any source |
| Cambaye | 1,826 | 0 | Dead zone: no towers from any source |
| Dalaupon | 536 | 0 | Dead zone: no towers from any source |
| Guincalaban | 2,812 | 0 | Dead zone: no towers from any source |
| Ilaya-Tayasan | 1,263 | 0 | Dead zone: no towers from any source |
| Jilabangan | 2,822 | 0 | Dead zone: no towers from any source |
| Lag-it | 3,032 | 0 | Dead zone: no towers from any source |
| Linao | 470 | 0 | Dead zone: no towers from any source |
| Lutay | 1,879 | 0 | Dead zone: no towers from any source |
| Maglihe | 1,040 | 0 | Dead zone: no towers from any source |
| Magtuhao | 461 | 0 | Dead zone: no towers from any source |
| Matauta | 449 | 0 | Dead zone: no towers from any source |
| Matuog | 2,854 | 0 | Dead zone: no towers from any source |
| Numnum | 809 | 0 | Dead zone: no towers from any source |
| Palaslan | 1,597 | 0 | Dead zone: no towers from any source |
| Pinalubngan | 2,068 | 0 | Dead zone: no towers from any source |
| Pindahan | 927 | 0 | Dead zone: no towers from any source |
| Pinocawan | 3,436 | 0 | Dead zone: no towers from any source |
| Poblacion | 2,706 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 716 | 0 | Dead zone: no towers from any source |
| Saying | 514 | 0 | Dead zone: no towers from any source |
| Suquib | 1,430 | 0 | Dead zone: no towers from any source |
| Tamao | 1,334 | 0 | Dead zone: no towers from any source |
| Tambulan | 4,072 | 0 | Dead zone: no towers from any source |
| Tanlad | 2,018 | 0 | Dead zone: no towers from any source |