Sirawai comprises 34 barangays with an estimated population of 45,315. 32 of its barangays (94%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balatakan | 612 | 0 | Dead zone: no towers from any source |
| Balonkan | 1,299 | 0 | Dead zone: no towers from any source |
| Balubuan | 675 | 0 | Dead zone: no towers from any source |
| Bitugan | 592 | 0 | Dead zone: no towers from any source |
| Bongon | 241 | 0 | Dead zone: no towers from any source |
| Catuyan | 170 | 0 | Dead zone: no towers from any source |
| Culasian | 980 | 0 | Dead zone: no towers from any source |
| Danganon | 314 | 0 | Dead zone: no towers from any source |
| Doña Cecilia | 1,704 | 1 | Crowdsourced signal only (no registered tower) |
| Guban | 6,130 | 0 | Dead zone: no towers from any source |
| Lagundi | 194 | 0 | Dead zone: no towers from any source |
| Libucon | 1,039 | 0 | Dead zone: no towers from any source |
| Lubok | 840 | 0 | Dead zone: no towers from any source |
| Macuyon | 100 | 0 | Dead zone: no towers from any source |
| Minanga | 240 | 0 | Dead zone: no towers from any source |
| Motong | 1,086 | 0 | Dead zone: no towers from any source |
| Napulan | 602 | 0 | Dead zone: no towers from any source |
| Panabutan | 1,920 | 0 | Dead zone: no towers from any source |
| Piacan | 478 | 0 | Dead zone: no towers from any source |
| Pisa Itom | 413 | 0 | Dead zone: no towers from any source |
| Pisa Puti | 2,269 | 0 | Dead zone: no towers from any source |
| Piña | 215 | 0 | Dead zone: no towers from any source |
| Pugos | 148 | 0 | Dead zone: no towers from any source |
| Pula Bato | 531 | 0 | Dead zone: no towers from any source |
| Pulang Lupa | 322 | 0 | Dead zone: no towers from any source |
| Saint Mary (Pob.) | 357 | 0 | Dead zone: no towers from any source |
| San Nicolas (Pob.) | 2,292 | 0 | Dead zone: no towers from any source |
| San Roque (Pob.) | 59 | 0 | Dead zone: no towers from any source |
| San Vicente (Pob.) | 553 | 1 | Crowdsourced signal only (no registered tower) |
| Sipakit | 519 | 0 | Dead zone: no towers from any source |
| Sipawa | 14,572 | 0 | Dead zone: no towers from any source |
| Sirawai Proper (Pob.) | 2,695 | 0 | Dead zone: no towers from any source |
| Talabiga | 509 | 0 | Dead zone: no towers from any source |
| Tapanayan | 645 | 0 | Dead zone: no towers from any source |