Bambang comprises 25 barangays with an estimated population of 49,747. 11 of its barangays (44%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abian | 990 | 1 | Crowdsourced signal only (no registered tower) |
| Abinganan | 1,389 | 0 | Dead zone: no towers from any source |
| Aliaga | 2,164 | 3 | Crowdsourced signal only (no registered tower) |
| Almaguer North | 2,646 | 27 | Crowdsourced signal only (no registered tower) |
| Almaguer South | 2,240 | 2 | Crowdsourced signal only (no registered tower) |
| Banggot (Pob.) | 2,011 | 19 | Crowdsourced signal only (no registered tower) |
| Barat | 951 | 0 | Dead zone: no towers from any source |
| Buag (Pob.) | 1,834 | 2 | Crowdsourced signal only (no registered tower) |
| Calaocan (Pob.) | 2,199 | 0 | Dead zone: no towers from any source |
| Dullao | 2,340 | 0 | Dead zone: no towers from any source |
| Homestead | 3,996 | 3 | Crowdsourced signal only (no registered tower) |
| Indiana | 1,919 | 12 | Crowdsourced signal only (no registered tower) |
| Mabuslo | 364 | 0 | Dead zone: no towers from any source |
| Macate | 3,663 | 13 | Crowdsourced signal only (no registered tower) |
| Magsaysay Hills | 1,408 | 4 | Crowdsourced signal only (no registered tower) |
| Manamtam | 531 | 0 | Dead zone: no towers from any source |
| Mauan | 1,294 | 0 | Dead zone: no towers from any source |
| Pallas | 2,276 | 1 | Crowdsourced signal only (no registered tower) |
| Salinas | 2,287 | 0 | Dead zone: no towers from any source |
| San Antonio North | 1,920 | 3 | Crowdsourced signal only (no registered tower) |
| San Antonio South | 1,200 | 0 | Dead zone: no towers from any source |
| San Fernando | 1,064 | 0 | Dead zone: no towers from any source |
| San Leonardo | 4,194 | 7 | Crowdsourced signal only (no registered tower) |
| Santo Domingo (Tabangan) | 3,791 | 8 | Crowdsourced signal only (no registered tower) |
| Santo Domingo West | 1,076 | 0 | Dead zone: no towers from any source |