Tagkawayan comprises 45 barangays with an estimated population of 61,294. 29 of its barangays (64%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Aldavoc | 1,099 | 0 | Dead zone: no towers from any source |
| Aliji | 1,996 | 0 | Dead zone: no towers from any source |
| Bagong Silang | 1,372 | 3 | Crowdsourced signal only (no registered tower) |
| Bamban | 2,285 | 0 | Dead zone: no towers from any source |
| Bosigon | 332 | 1 | Crowdsourced signal only (no registered tower) |
| Bukal | 614 | 0 | Dead zone: no towers from any source |
| Cabibihan | 514 | 0 | Dead zone: no towers from any source |
| Cabugwang | 745 | 0 | Dead zone: no towers from any source |
| Cagascas | 265 | 0 | Dead zone: no towers from any source |
| Candalapdap | 674 | 0 | Dead zone: no towers from any source |
| Casispalan | 763 | 0 | Dead zone: no towers from any source |
| Colong-colong | 803 | 1 | Crowdsourced signal only (no registered tower) |
| Del Rosario | 897 | 0 | Dead zone: no towers from any source |
| Katimo | 1,458 | 1 | Crowdsourced signal only (no registered tower) |
| Kinatakutan | 2,866 | 0 | Dead zone: no towers from any source |
| Landing | 1,615 | 0 | Dead zone: no towers from any source |
| Laurel | 727 | 0 | Dead zone: no towers from any source |
| Magsaysay | 3,406 | 0 | Dead zone: no towers from any source |
| Maguibuay | 559 | 0 | Dead zone: no towers from any source |
| Mahinta | 1,390 | 1 | Crowdsourced signal only (no registered tower) |
| Malbog | 293 | 0 | Dead zone: no towers from any source |
| Manato Central | 490 | 0 | Dead zone: no towers from any source |
| Manato Station | 1,737 | 0 | Dead zone: no towers from any source |
| Mangayao | 667 | 0 | Dead zone: no towers from any source |
| Mansilay | 1,104 | 0 | Dead zone: no towers from any source |
| Mapulot | 4,017 | 0 | Dead zone: no towers from any source |
| Munting Parang | 1,328 | 15 | Crowdsourced signal only (no registered tower) |
| Payapa | 929 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion | 3,913 | 14 | Crowdsourced signal only (no registered tower) |
| Rizal | 3,369 | 4 | Crowdsourced signal only (no registered tower) |
| Sabang | 972 | 0 | Dead zone: no towers from any source |
| San Diego | 1,293 | 1 | Crowdsourced signal only (no registered tower) |
| San Francisco | 1,357 | 6 | Crowdsourced signal only (no registered tower) |
| San Isidro | 1,390 | 0 | Dead zone: no towers from any source |
| San Roque | 589 | 0 | Dead zone: no towers from any source |
| San Vicente | 2,418 | 16 | Crowdsourced signal only (no registered tower) |
| Santa Cecilia | 4,816 | 5 | Crowdsourced signal only (no registered tower) |
| Santa Monica | 1,602 | 11 | Crowdsourced signal only (no registered tower) |
| Santo Niño I | 189 | 0 | Dead zone: no towers from any source |
| Santo Niño II | 393 | 0 | Dead zone: no towers from any source |
| Santo Tomas | 685 | 3 | Crowdsourced signal only (no registered tower) |
| Seguiwan | 797 | 1 | Crowdsourced signal only (no registered tower) |
| Tabason | 1,002 | 0 | Dead zone: no towers from any source |
| Tunton | 1,198 | 0 | Dead zone: no towers from any source |
| Victoria | 366 | 0 | Dead zone: no towers from any source |