Tuao comprises 32 barangays with an estimated population of 56,341. 27 of its barangays (84%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Accusilian | 2,788 | 0 | Dead zone: no towers from any source |
| Alabiao | 1,482 | 0 | Dead zone: no towers from any source |
| Alabug | 4,314 | 0 | Dead zone: no towers from any source |
| Angang | 1,385 | 1 | Crowdsourced signal only (no registered tower) |
| Bagumbayan | 2,114 | 0 | Dead zone: no towers from any source |
| Barancuag | 379 | 0 | Dead zone: no towers from any source |
| Battung | 1,245 | 0 | Dead zone: no towers from any source |
| Bicok | 69 | 0 | Dead zone: no towers from any source |
| Bugnay | 3,786 | 1 | Crowdsourced signal only (no registered tower) |
| Bulagao | 4,483 | 0 | Dead zone: no towers from any source |
| Cagumitan | 1,918 | 6 | Crowdsourced signal only (no registered tower) |
| Cato | 2,939 | 0 | Dead zone: no towers from any source |
| Culung | 2,658 | 0 | Dead zone: no towers from any source |
| Dagupan | 1,760 | 0 | Dead zone: no towers from any source |
| Fugu | 1,316 | 0 | Dead zone: no towers from any source |
| Lakambini | 1,880 | 0 | Dead zone: no towers from any source |
| Lallayug | 1,463 | 0 | Dead zone: no towers from any source |
| Malalinta | 357 | 0 | Dead zone: no towers from any source |
| Malummin | 1,837 | 0 | Dead zone: no towers from any source |
| Mambacag | 2,207 | 0 | Dead zone: no towers from any source |
| Mungo | 3,688 | 5 | Crowdsourced signal only (no registered tower) |
| Naruangan | 1,492 | 0 | Dead zone: no towers from any source |
| Palca | 2,207 | 0 | Dead zone: no towers from any source |
| Pata | 1,992 | 7 | Crowdsourced signal only (no registered tower) |
| Poblacion I (Ward I Centro) | 826 | 0 | Dead zone: no towers from any source |
| Poblacion II (Ward II Centro) | 1,456 | 0 | Dead zone: no towers from any source |
| San Juan | 209 | 0 | Dead zone: no towers from any source |
| San Luis (Gurengad) | 1,700 | 0 | Dead zone: no towers from any source |
| San Vicente (Maleg) | 309 | 0 | Dead zone: no towers from any source |
| Sto. Tomas | 51 | 0 | Dead zone: no towers from any source |
| Taribubu | 147 | 0 | Dead zone: no towers from any source |
| Villalaida | 1,884 | 0 | Dead zone: no towers from any source |