Bagumbayan comprises 19 barangays with an estimated population of 84,265. 16 of its barangays (84%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bai Sarifinang | 10,833 | 0 | Dead zone: no towers from any source |
| Biwang | 5,493 | 1 | Crowdsourced signal only (no registered tower) |
| Busok | 3,574 | 0 | Dead zone: no towers from any source |
| Chua | 2,625 | 0 | Dead zone: no towers from any source |
| Daguma | 2,887 | 0 | Dead zone: no towers from any source |
| Daluga | 943 | 0 | Dead zone: no towers from any source |
| Kabulanan | 2,954 | 0 | Dead zone: no towers from any source |
| Kanulay | 3,910 | 0 | Dead zone: no towers from any source |
| Kapaya | 5,283 | 0 | Dead zone: no towers from any source |
| Kinayao | 3,030 | 0 | Dead zone: no towers from any source |
| Masiag | 8,278 | 0 | Dead zone: no towers from any source |
| Monteverde | 1,288 | 0 | Dead zone: no towers from any source |
| Poblacion | 7,507 | 10 | Crowdsourced signal only (no registered tower) |
| Santo Niño | 2,714 | 0 | Dead zone: no towers from any source |
| Sison | 6,651 | 2 | Crowdsourced signal only (no registered tower) |
| South Sepaka | 5,592 | 0 | Dead zone: no towers from any source |
| Sumilil | 1,305 | 0 | Dead zone: no towers from any source |
| Titulok | 2,373 | 0 | Dead zone: no towers from any source |
| Tuka | 7,025 | 0 | Dead zone: no towers from any source |