Dumingag comprises 44 barangays with an estimated population of 46,826. 40 of its barangays (91%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bag-ong Valencia | 914 | 0 | Dead zone: no towers from any source |
| Bagong Kauswagan | 188 | 0 | Dead zone: no towers from any source |
| Bagong Silang | 465 | 0 | Dead zone: no towers from any source |
| Bucayan | 523 | 0 | Dead zone: no towers from any source |
| Calumanggi | 584 | 0 | Dead zone: no towers from any source |
| Canibongan | 889 | 0 | Dead zone: no towers from any source |
| Caridad | 2,271 | 1 | Crowdsourced signal only (no registered tower) |
| Danlugan | 1,160 | 0 | Dead zone: no towers from any source |
| Dapiwak | 1,784 | 0 | Dead zone: no towers from any source |
| Datu Totocan | 974 | 0 | Dead zone: no towers from any source |
| Dilud | 1,011 | 0 | Dead zone: no towers from any source |
| Ditulan | 825 | 0 | Dead zone: no towers from any source |
| Dulian | 319 | 0 | Dead zone: no towers from any source |
| Dulop | 1,307 | 0 | Dead zone: no towers from any source |
| Guintananan | 780 | 0 | Dead zone: no towers from any source |
| Guitran | 1,025 | 0 | Dead zone: no towers from any source |
| Gumpingan | 297 | 0 | Dead zone: no towers from any source |
| La Fortuna | 840 | 0 | Dead zone: no towers from any source |
| Labangon | 3,731 | 0 | Dead zone: no towers from any source |
| Libertad | 1,616 | 0 | Dead zone: no towers from any source |
| Licabang | 2,720 | 0 | Dead zone: no towers from any source |
| Lipawan | 367 | 0 | Dead zone: no towers from any source |
| Lower Landing | 2,870 | 0 | Dead zone: no towers from any source |
| Lower Timonan | 753 | 0 | Dead zone: no towers from any source |
| Macasing | 272 | 0 | Dead zone: no towers from any source |
| Mahayahay | 1,236 | 0 | Dead zone: no towers from any source |
| Malagalad | 509 | 0 | Dead zone: no towers from any source |
| Manlabay | 1,390 | 0 | Dead zone: no towers from any source |
| Maralag | 1,314 | 0 | Dead zone: no towers from any source |
| Marangan | 1,117 | 0 | Dead zone: no towers from any source |
| New Basak | 1,277 | 1 | Crowdsourced signal only (no registered tower) |
| Saad | 352 | 0 | Dead zone: no towers from any source |
| Salvador | 446 | 0 | Dead zone: no towers from any source |
| San Juan | 238 | 0 | Dead zone: no towers from any source |
| San Pablo (Pob.) | 777 | 1 | Crowdsourced signal only (no registered tower) |
| San Pedro (Pob.) | 3,075 | 1 | Crowdsourced signal only (no registered tower) |
| San Vicente | 564 | 0 | Dead zone: no towers from any source |
| Senote | 941 | 0 | Dead zone: no towers from any source |
| Sinonok | 425 | 0 | Dead zone: no towers from any source |
| Sunop | 771 | 0 | Dead zone: no towers from any source |
| Tagun | 349 | 0 | Dead zone: no towers from any source |
| Tamurayan | 332 | 0 | Dead zone: no towers from any source |
| Upper Landing | 2,124 | 0 | Dead zone: no towers from any source |
| Upper Timonan | 1,104 | 0 | Dead zone: no towers from any source |