Unisan comprises 36 barangays with an estimated population of 27,159. 28 of its barangays (78%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Almacen | 899 | 0 | Dead zone: no towers from any source |
| Balagtas | 769 | 0 | Dead zone: no towers from any source |
| Balanacan | 523 | 0 | Dead zone: no towers from any source |
| Bonifacio | 533 | 0 | Dead zone: no towers from any source |
| Bulo Ibaba | 717 | 0 | Dead zone: no towers from any source |
| Bulo Ilaya | 641 | 0 | Dead zone: no towers from any source |
| Burgos | 301 | 0 | Dead zone: no towers from any source |
| Cabulihan Ibaba | 515 | 0 | Dead zone: no towers from any source |
| Cabulihan Ilaya | 710 | 6 | Crowdsourced signal only (no registered tower) |
| Caigdal | 551 | 1 | Crowdsourced signal only (no registered tower) |
| F. de Jesus (Pob.) | 1,256 | 2 | Crowdsourced signal only (no registered tower) |
| General Luna | 304 | 0 | Dead zone: no towers from any source |
| Kalilayan Ibaba | 1,718 | 2 | Crowdsourced signal only (no registered tower) |
| Kalilayan Ilaya | 1,550 | 1 | Crowdsourced signal only (no registered tower) |
| Mabini | 377 | 0 | Dead zone: no towers from any source |
| Mairok Ibaba | 341 | 0 | Dead zone: no towers from any source |
| Mairok Ilaya | 144 | 0 | Dead zone: no towers from any source |
| Malvar | 346 | 0 | Dead zone: no towers from any source |
| Maputat | 368 | 0 | Dead zone: no towers from any source |
| Muliguin | 2,689 | 2 | Crowdsourced signal only (no registered tower) |
| Pagaguasan | 463 | 0 | Dead zone: no towers from any source |
| Panaon Ibaba | 1,117 | 0 | Dead zone: no towers from any source |
| Panaon Ilaya | 1,042 | 0 | Dead zone: no towers from any source |
| Plaridel | 448 | 0 | Dead zone: no towers from any source |
| Poctol | 2,480 | 0 | Dead zone: no towers from any source |
| Punta | 653 | 0 | Dead zone: no towers from any source |
| R. Lapu-lapu (Pob.) | 133 | 0 | Dead zone: no towers from any source |
| R. Magsaysay (Pob.) | 1,224 | 1 | Crowdsourced signal only (no registered tower) |
| Raja Soliman (Pob.) | 1,084 | 3 | Crowdsourced signal only (no registered tower) |
| Rizal Ibaba | 420 | 0 | Dead zone: no towers from any source |
| Rizal Ilaya | 405 | 0 | Dead zone: no towers from any source |
| San Roque | 442 | 0 | Dead zone: no towers from any source |
| Socorro | 389 | 0 | Dead zone: no towers from any source |
| Tagumpay | 534 | 0 | Dead zone: no towers from any source |
| Tubas | 461 | 0 | Dead zone: no towers from any source |
| Tubigan | 612 | 0 | Dead zone: no towers from any source |