Bula comprises 33 barangays with an estimated population of 91,856. 24 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 |
|---|---|---|---|
| Bagoladio | 2,026 | 0 | Dead zone: no towers from any source |
| Bagumbayan | 2,427 | 0 | Dead zone: no towers from any source |
| Balaogan | 4,639 | 3 | Crowdsourced signal only (no registered tower) |
| Caorasan | 1,432 | 0 | Dead zone: no towers from any source |
| Casugad | 7,522 | 2 | Crowdsourced signal only (no registered tower) |
| Causip | 2,832 | 0 | Dead zone: no towers from any source |
| Fabrica | 4,240 | 13 | Crowdsourced signal only (no registered tower) |
| Inoyonan | 2,244 | 0 | Dead zone: no towers from any source |
| Itangon | 2,471 | 0 | Dead zone: no towers from any source |
| Kinalabasahan | 966 | 0 | Dead zone: no towers from any source |
| La Purisima | 2,498 | 0 | Dead zone: no towers from any source |
| La Victoria | 1,996 | 0 | Dead zone: no towers from any source |
| Lanipga | 2,150 | 0 | Dead zone: no towers from any source |
| Lubgan | 2,213 | 11 | Crowdsourced signal only (no registered tower) |
| Ombao Heights | 2,518 | 0 | Dead zone: no towers from any source |
| Ombao Polpog | 3,392 | 0 | Dead zone: no towers from any source |
| Palsong | 7,671 | 0 | Dead zone: no towers from any source |
| Panoypoyan | 3,344 | 0 | Dead zone: no towers from any source |
| Pawili | 4,061 | 20 | Crowdsourced signal only (no registered tower) |
| Sagrada (Sagrada Familia) | 698 | 1 | Crowdsourced signal only (no registered tower) |
| Salvacion (Pob.) | 174 | 0 | Dead zone: no towers from any source |
| San Agustin | 2,084 | 8 | Crowdsourced signal only (no registered tower) |
| San Francisco | 1,949 | 0 | Dead zone: no towers from any source |
| San Isidro | 7,747 | 0 | Dead zone: no towers from any source |
| San Jose | 1,125 | 0 | Dead zone: no towers from any source |
| San Miguel | 2,382 | 0 | Dead zone: no towers from any source |
| San Ramon | 2,827 | 0 | Dead zone: no towers from any source |
| San Roque (Pob.) | 3,526 | 1 | Crowdsourced signal only (no registered tower) |
| San Roque Heights | 1,002 | 0 | Dead zone: no towers from any source |
| Santa Elena | 3,415 | 3 | Crowdsourced signal only (no registered tower) |
| Santo Domingo | 2,106 | 0 | Dead zone: no towers from any source |
| Santo Niño | 1,723 | 0 | Dead zone: no towers from any source |
| Taisan | 456 | 0 | Dead zone: no towers from any source |