Baliangao comprises 15 barangays with an estimated population of 18,421. 12 of its barangays (80%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Del Pilar | 1,428 | 0 | Dead zone: no towers from any source |
| Landing | 1,755 | 0 | Dead zone: no towers from any source |
| Lumipac | 999 | 0 | Dead zone: no towers from any source |
| Lusot | 4,349 | 1 | Crowdsourced signal only (no registered tower) |
| Mabini | 1,333 | 0 | Dead zone: no towers from any source |
| Magsaysay | 639 | 0 | Dead zone: no towers from any source |
| Misom | 587 | 0 | Dead zone: no towers from any source |
| Mitacas | 460 | 1 | Crowdsourced signal only (no registered tower) |
| Naburos | 143 | 0 | Dead zone: no towers from any source |
| Northern Poblacion | 511 | 0 | Dead zone: no towers from any source |
| Punta Miray | 2,375 | 0 | Dead zone: no towers from any source |
| Punta Sulong | 632 | 0 | Dead zone: no towers from any source |
| Sinian | 780 | 0 | Dead zone: no towers from any source |
| Southern Poblacion | 1,004 | 0 | Dead zone: no towers from any source |
| Tugas | 1,426 | 5 | Crowdsourced signal only (no registered tower) |