Bustos comprises 14 barangays with an estimated population of 126,245. 1 of its barangays (7%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bonga Mayor | 11,314 | 12 | Crowdsourced signal only (no registered tower) |
| Bonga Menor | 22,972 | 21 | Crowdsourced signal only (no registered tower) |
| Buisan | 1,087 | 3 | Crowdsourced signal only (no registered tower) |
| Camachilihan | 5,956 | 67 | Crowdsourced signal only (no registered tower) |
| Cambaog | 5,554 | 2 | Crowdsourced signal only (no registered tower) |
| Catacte | 5,655 | 0 | Dead zone: no towers from any source |
| Liciada | 6,158 | 10 | Crowdsourced signal only (no registered tower) |
| Malamig | 22,351 | 45 | Crowdsourced signal only (no registered tower) |
| Malawak | 3,482 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion | 4,454 | 28 | Crowdsourced signal only (no registered tower) |
| San Pedro | 10,942 | 2 | Crowdsourced signal only (no registered tower) |
| Talampas | 6,486 | 17 | Crowdsourced signal only (no registered tower) |
| Tanawan | 9,977 | 12 | Crowdsourced signal only (no registered tower) |
| Tibagan | 9,857 | 10 | Crowdsourced signal only (no registered tower) |