Tagudin comprises 43 barangays with an estimated population of 47,216. 27 of its barangays (63%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Ag-aguman | 745 | 0 | Dead zone: no towers from any source |
| Ambalayat | 2,147 | 0 | Dead zone: no towers from any source |
| Baracbac | 953 | 1 | Crowdsourced signal only (no registered tower) |
| Bario-an | 468 | 0 | Dead zone: no towers from any source |
| Baritao | 539 | 0 | Dead zone: no towers from any source |
| Becques | 2,315 | 1 | Crowdsourced signal only (no registered tower) |
| Bimmanga | 338 | 0 | Dead zone: no towers from any source |
| Bio | 1,420 | 5 | Crowdsourced signal only (no registered tower) |
| Bitalag | 1,745 | 3 | Crowdsourced signal only (no registered tower) |
| Borono | 1,300 | 1 | Crowdsourced signal only (no registered tower) |
| Bucao East | 340 | 2 | Crowdsourced signal only (no registered tower) |
| Bucao West | 393 | 1 | Crowdsourced signal only (no registered tower) |
| Cabaroan | 809 | 0 | Dead zone: no towers from any source |
| Cabugbugan | 1,576 | 0 | Dead zone: no towers from any source |
| Cabulanglangan | 964 | 0 | Dead zone: no towers from any source |
| Dacutan | 711 | 0 | Dead zone: no towers from any source |
| Dardarat | 2,042 | 5 | Crowdsourced signal only (no registered tower) |
| Del Pilar (Pob.) | 1,344 | 0 | Dead zone: no towers from any source |
| Farola | 413 | 0 | Dead zone: no towers from any source |
| Gabur | 1,106 | 0 | Dead zone: no towers from any source |
| Garitan | 1,459 | 0 | Dead zone: no towers from any source |
| Jardin | 192 | 0 | Dead zone: no towers from any source |
| Lacong | 1,638 | 7 | Crowdsourced signal only (no registered tower) |
| Lantag | 802 | 1 | Crowdsourced signal only (no registered tower) |
| Las-ud | 936 | 3 | Crowdsourced signal only (no registered tower) |
| Libtong | 2,590 | 1 | Crowdsourced signal only (no registered tower) |
| Lubnac | 1,195 | 0 | Dead zone: no towers from any source |
| Magsaysay (Pob.) | 522 | 2 | Crowdsourced signal only (no registered tower) |
| Malacañang | 498 | 0 | Dead zone: no towers from any source |
| Pacac | 611 | 1 | Crowdsourced signal only (no registered tower) |
| Pallogan | 913 | 0 | Dead zone: no towers from any source |
| Pudoc East | 4,574 | 0 | Dead zone: no towers from any source |
| Pudoc West | 1,890 | 0 | Dead zone: no towers from any source |
| Pula | 720 | 0 | Dead zone: no towers from any source |
| Quirino (Pob.) | 295 | 1 | Crowdsourced signal only (no registered tower) |
| Ranget | 1,003 | 0 | Dead zone: no towers from any source |
| Rizal (Pob.) | 1,054 | 0 | Dead zone: no towers from any source |
| Salvacion | 361 | 0 | Dead zone: no towers from any source |
| San Miguel | 309 | 0 | Dead zone: no towers from any source |
| Sawat | 965 | 0 | Dead zone: no towers from any source |
| Tallaoen | 1,347 | 1 | Crowdsourced signal only (no registered tower) |
| Tampugo | 1,566 | 0 | Dead zone: no towers from any source |
| Tarangotong | 108 | 0 | Dead zone: no towers from any source |