Sindangan comprises 52 barangays with an estimated population of 114,408. 37 of its barangays (71%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bago | 3,794 | 0 | Dead zone: no towers from any source |
| Balok | 2,168 | 0 | Dead zone: no towers from any source |
| Bantayan | 750 | 6 | Crowdsourced signal only (no registered tower) |
| Bato | 1,614 | 0 | Dead zone: no towers from any source |
| Benigno Aquino Jr. | 6,889 | 0 | Dead zone: no towers from any source |
| Binuangan | 2,889 | 0 | Dead zone: no towers from any source |
| Bitoon | 2,647 | 0 | Dead zone: no towers from any source |
| Bucana | 531 | 0 | Dead zone: no towers from any source |
| Calatunan | 1,809 | 0 | Dead zone: no towers from any source |
| Caluan | 3,649 | 0 | Dead zone: no towers from any source |
| Calubian | 1,132 | 0 | Dead zone: no towers from any source |
| Dagohoy | 1,578 | 0 | Dead zone: no towers from any source |
| Dapaon | 1,610 | 2 | Crowdsourced signal only (no registered tower) |
| Datagan | 641 | 0 | Dead zone: no towers from any source |
| Datu Tangkilan | 4,309 | 1 | Crowdsourced signal only (no registered tower) |
| Dicoyong | 1,927 | 0 | Dead zone: no towers from any source |
| Disud | 4,236 | 0 | Dead zone: no towers from any source |
| Don Ricardo Macias (Dinobot) | 4,168 | 1 | Crowdsourced signal only (no registered tower) |
| Doña Josefa | 1,686 | 1 | Crowdsourced signal only (no registered tower) |
| Dumalogdog | 938 | 0 | Dead zone: no towers from any source |
| Fatima | 291 | 0 | Dead zone: no towers from any source |
| Gampis | 1,474 | 0 | Dead zone: no towers from any source |
| Goleo | 3,332 | 2 | Crowdsourced signal only (no registered tower) |
| Imelda | 1,893 | 0 | Dead zone: no towers from any source |
| Inuman | 2,077 | 1 | Crowdsourced signal only (no registered tower) |
| Joaquin Macias | 1,287 | 0 | Dead zone: no towers from any source |
| La Concepcion | 1,714 | 0 | Dead zone: no towers from any source |
| La Roche San Miguel | 685 | 0 | Dead zone: no towers from any source |
| Labakid | 5,243 | 0 | Dead zone: no towers from any source |
| Lagag | 1,090 | 0 | Dead zone: no towers from any source |
| Lapero | 848 | 0 | Dead zone: no towers from any source |
| Lawis | 1,114 | 0 | Dead zone: no towers from any source |
| Magsaysay | 578 | 0 | Dead zone: no towers from any source |
| Mandih | 7,936 | 3 | Crowdsourced signal only (no registered tower) |
| Maras | 3,954 | 1 | Crowdsourced signal only (no registered tower) |
| Mawal | 215 | 0 | Dead zone: no towers from any source |
| Misok | 1,928 | 0 | Dead zone: no towers from any source |
| Motibot | 2,296 | 3 | Crowdsourced signal only (no registered tower) |
| Nato | 519 | 0 | Dead zone: no towers from any source |
| Nipaan | 1,485 | 0 | Dead zone: no towers from any source |
| Pangalalan | 2,833 | 0 | Dead zone: no towers from any source |
| Piao | 3,197 | 0 | Dead zone: no towers from any source |
| Poblacion | 3,048 | 7 | Crowdsourced signal only (no registered tower) |
| Santo Niño | 816 | 3 | Crowdsourced signal only (no registered tower) |
| Santo Rosario | 1,632 | 0 | Dead zone: no towers from any source |
| Siare | 4,494 | 3 | Crowdsourced signal only (no registered tower) |
| Talinga | 1,269 | 0 | Dead zone: no towers from any source |
| Tigbao | 2,382 | 1 | Crowdsourced signal only (no registered tower) |
| Tinaplan | 1,829 | 0 | Dead zone: no towers from any source |
| Titik | 1,399 | 0 | Dead zone: no towers from any source |
| Upper Inuman | 1,964 | 2 | Crowdsourced signal only (no registered tower) |
| Upper Nipaan | 621 | 0 | Dead zone: no towers from any source |