Dumaran comprises 16 barangays with an estimated population of 30,446. 16 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bacao | 1,508 | 0 | Dead zone: no towers from any source |
| Bohol | 1,467 | 0 | Dead zone: no towers from any source |
| Calasag | 112 | 0 | Dead zone: no towers from any source |
| Capayas | 1,799 | 0 | Dead zone: no towers from any source |
| Catep | 685 | 0 | Dead zone: no towers from any source |
| Culasian | 762 | 0 | Dead zone: no towers from any source |
| Danleg | 1,504 | 0 | Dead zone: no towers from any source |
| Dumaran (Pob.) | 1,906 | 0 | Dead zone: no towers from any source |
| Ilian | 3,661 | 0 | Dead zone: no towers from any source |
| Itangil | 2,737 | 0 | Dead zone: no towers from any source |
| Magsaysay | 1,003 | 0 | Dead zone: no towers from any source |
| San Juan | 769 | 0 | Dead zone: no towers from any source |
| Santa Maria | 1,663 | 0 | Dead zone: no towers from any source |
| Santa Teresita | 3,115 | 0 | Dead zone: no towers from any source |
| Santo Tomas | 2,343 | 0 | Dead zone: no towers from any source |
| Tanatanaon | 5,412 | 0 | Dead zone: no towers from any source |