Dumanjug comprises 37 barangays with an estimated population of 51,810. 27 of its barangays (73%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balaygtiki | 1,276 | 12 | Crowdsourced signal only (no registered tower) |
| Bitoon | 2,911 | 2 | Crowdsourced signal only (no registered tower) |
| Bulak | 1,780 | 0 | Dead zone: no towers from any source |
| Bullogan | 1,367 | 0 | Dead zone: no towers from any source |
| Calaboon | 1,884 | 0 | Dead zone: no towers from any source |
| Camboang | 1,154 | 2 | Crowdsourced signal only (no registered tower) |
| Candabong | 992 | 0 | Dead zone: no towers from any source |
| Cogon | 3,460 | 0 | Dead zone: no towers from any source |
| Cotcoton | 655 | 0 | Dead zone: no towers from any source |
| Doldol | 1,458 | 0 | Dead zone: no towers from any source |
| Ilaya (Pob.) | 1,027 | 3 | Crowdsourced signal only (no registered tower) |
| Kabalaasnan | 157 | 0 | Dead zone: no towers from any source |
| Kabatbatan | 397 | 0 | Dead zone: no towers from any source |
| Kambanog | 209 | 0 | Dead zone: no towers from any source |
| Kang-actol | 1,185 | 0 | Dead zone: no towers from any source |
| Kanghalo | 483 | 0 | Dead zone: no towers from any source |
| Kanghumaod | 1,831 | 0 | Dead zone: no towers from any source |
| Kanguha | 270 | 0 | Dead zone: no towers from any source |
| Kantangkas | 1,512 | 0 | Dead zone: no towers from any source |
| Kanyuko | 1,082 | 0 | Dead zone: no towers from any source |
| Kolabtingon | 671 | 0 | Dead zone: no towers from any source |
| Lamak | 575 | 0 | Dead zone: no towers from any source |
| Lawaan | 2,807 | 1 | Crowdsourced signal only (no registered tower) |
| Liong | 2,875 | 7 | Crowdsourced signal only (no registered tower) |
| Manlapay | 1,606 | 0 | Dead zone: no towers from any source |
| Masa | 290 | 0 | Dead zone: no towers from any source |
| Matalao | 1,081 | 0 | Dead zone: no towers from any source |
| Paculob | 1,487 | 0 | Dead zone: no towers from any source |
| Panlaan | 2,004 | 0 | Dead zone: no towers from any source |
| Pawa | 833 | 0 | Dead zone: no towers from any source |
| Poblacion Central | 871 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion Looc | 742 | 0 | Dead zone: no towers from any source |
| Poblacion Sima | 391 | 0 | Dead zone: no towers from any source |
| Tangil | 1,626 | 9 | Crowdsourced signal only (no registered tower) |
| Tapon | 3,793 | 2 | Crowdsourced signal only (no registered tower) |
| Tubod-Bitoon | 3,119 | 1 | Crowdsourced signal only (no registered tower) |
| Tubod-Dugoan | 1,949 | 0 | Dead zone: no towers from any source |