Culaba comprises 17 barangays with an estimated population of 15,985. 16 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 |
|---|---|---|---|
| Acaban | 1,228 | 0 | Dead zone: no towers from any source |
| Bacolod | 259 | 0 | Dead zone: no towers from any source |
| Binongtoan | 460 | 0 | Dead zone: no towers from any source |
| Bool Central (Pob.) | 158 | 0 | Dead zone: no towers from any source |
| Bool East (Pob.) | 707 | 0 | Dead zone: no towers from any source |
| Bool West (Pob.) | 1,356 | 0 | Dead zone: no towers from any source |
| Calipayan | 962 | 0 | Dead zone: no towers from any source |
| Culaba Central (Pob.) | 230 | 5 | Crowdsourced signal only (no registered tower) |
| Guindapunan | 479 | 0 | Dead zone: no towers from any source |
| Habuhab | 476 | 0 | Dead zone: no towers from any source |
| Looc | 960 | 0 | Dead zone: no towers from any source |
| Marvel (Pob.) | 2,639 | 0 | Dead zone: no towers from any source |
| Patag | 515 | 0 | Dead zone: no towers from any source |
| Pinamihagan | 862 | 0 | Dead zone: no towers from any source |
| Salvacion | 707 | 0 | Dead zone: no towers from any source |
| San Roque | 399 | 0 | Dead zone: no towers from any source |
| Virginia (Pob.) | 3,588 | 0 | Dead zone: no towers from any source |