Dimiao comprises 35 barangays with an estimated population of 17,826. 26 of its barangays (74%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abihid | 386 | 0 | Dead zone: no towers from any source |
| Alemania | 232 | 2 | Crowdsourced signal only (no registered tower) |
| Baguhan | 248 | 0 | Dead zone: no towers from any source |
| Bakilid | 93 | 0 | Dead zone: no towers from any source |
| Balbalan | 557 | 3 | Crowdsourced signal only (no registered tower) |
| Banban | 582 | 2 | Crowdsourced signal only (no registered tower) |
| Bauhugan | 133 | 0 | Dead zone: no towers from any source |
| Bilisan | 390 | 0 | Dead zone: no towers from any source |
| Cabagakian | 595 | 0 | Dead zone: no towers from any source |
| Cabanbanan | 470 | 0 | Dead zone: no towers from any source |
| Cadap-agan | 877 | 0 | Dead zone: no towers from any source |
| Cambacol | 759 | 0 | Dead zone: no towers from any source |
| Cambayaon | 606 | 0 | Dead zone: no towers from any source |
| Canhayupon | 868 | 0 | Dead zone: no towers from any source |
| Canlambong | 459 | 0 | Dead zone: no towers from any source |
| Casingan | 427 | 0 | Dead zone: no towers from any source |
| Catugasan | 417 | 0 | Dead zone: no towers from any source |
| Datag | 123 | 0 | Dead zone: no towers from any source |
| Guindaguitan | 472 | 0 | Dead zone: no towers from any source |
| Guingoyuran | 1,044 | 0 | Dead zone: no towers from any source |
| Ile | 258 | 0 | Dead zone: no towers from any source |
| Lapsaon | 777 | 0 | Dead zone: no towers from any source |
| Limokon Ilaod | 688 | 0 | Dead zone: no towers from any source |
| Limokon Ilaya | 527 | 0 | Dead zone: no towers from any source |
| Luyo | 894 | 0 | Dead zone: no towers from any source |
| Malijao | 444 | 0 | Dead zone: no towers from any source |
| Oac | 786 | 0 | Dead zone: no towers from any source |
| Pagsa | 112 | 0 | Dead zone: no towers from any source |
| Pangihawan | 447 | 0 | Dead zone: no towers from any source |
| Puangyuta | 282 | 1 | Crowdsourced signal only (no registered tower) |
| Sawang | 282 | 1 | Crowdsourced signal only (no registered tower) |
| Tangohay | 613 | 2 | Crowdsourced signal only (no registered tower) |
| Taongon Cabatuan | 393 | 2 | Crowdsourced signal only (no registered tower) |
| Taongon Can-andam | 978 | 1 | Crowdsourced signal only (no registered tower) |
| Tawid Bitaog | 607 | 1 | Crowdsourced signal only (no registered tower) |