Tadian comprises 19 barangays with an estimated population of 35,357. 14 of its barangays (74%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balaoa | 1,786 | 3 | Crowdsourced signal only (no registered tower) |
| Banaao | 417 | 0 | Dead zone: no towers from any source |
| Bantey | 1,632 | 0 | Dead zone: no towers from any source |
| Batayan | 1,525 | 0 | Dead zone: no towers from any source |
| Bunga | 1,663 | 0 | Dead zone: no towers from any source |
| Cadad-anan | 2,271 | 1 | Crowdsourced signal only (no registered tower) |
| Cagubatan | 1,494 | 0 | Dead zone: no towers from any source |
| Dacudac | 1,752 | 0 | Dead zone: no towers from any source |
| Duagan | 741 | 0 | Dead zone: no towers from any source |
| Kayan East | 1,383 | 0 | Dead zone: no towers from any source |
| Kayan West | 1,425 | 1 | Crowdsourced signal only (no registered tower) |
| Lenga | 245 | 0 | Dead zone: no towers from any source |
| Lubon | 3,600 | 0 | Dead zone: no towers from any source |
| Mabalite | 492 | 0 | Dead zone: no towers from any source |
| Masla | 2,287 | 0 | Dead zone: no towers from any source |
| Pandayan | 1,962 | 0 | Dead zone: no towers from any source |
| Poblacion | 8,335 | 10 | Crowdsourced signal only (no registered tower) |
| Sumadel | 626 | 0 | Dead zone: no towers from any source |
| Tue | 1,721 | 1 | Crowdsourced signal only (no registered tower) |