Lianga comprises 13 barangays with an estimated population of 35,108. 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 |
|---|---|---|---|
| Anibongan | 1,297 | 0 | Dead zone: no towers from any source |
| Ban-as | 1,250 | 0 | Dead zone: no towers from any source |
| Banahao | 1,468 | 0 | Dead zone: no towers from any source |
| Baucawe | 1,070 | 0 | Dead zone: no towers from any source |
| Diatagon | 1,539 | 2 | Crowdsourced signal only (no registered tower) |
| Ganayon | 10,703 | 0 | Dead zone: no towers from any source |
| Liatimco | 1,068 | 0 | Dead zone: no towers from any source |
| Manyayay | 2,377 | 0 | Dead zone: no towers from any source |
| Payasan | 2,445 | 0 | Dead zone: no towers from any source |
| Poblacion | 4,731 | 7 | Crowdsourced signal only (no registered tower) |
| Saint Christine | 2,027 | 0 | Dead zone: no towers from any source |
| San Isidro | 1,421 | 0 | Dead zone: no towers from any source |
| San Pedro | 3,712 | 0 | Dead zone: no towers from any source |