Bombon comprises 8 barangays with an estimated population of 14,443. 4 of its barangays (50%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Pagao (San Juan) | 1,103 | 0 | Dead zone: no towers from any source |
| San Antonio | 2,612 | 0 | Dead zone: no towers from any source |
| San Francisco | 2,937 | 1 | Crowdsourced signal only (no registered tower) |
| San Isidro (Pob.) | 1,533 | 14 | Crowdsourced signal only (no registered tower) |
| San Jose (Pob.) | 814 | 0 | Dead zone: no towers from any source |
| San Roque (Pob.) | 2,029 | 2 | Crowdsourced signal only (no registered tower) |
| Santo Domingo | 1,343 | 0 | Dead zone: no towers from any source |
| Siembre | 2,072 | 1 | Crowdsourced signal only (no registered tower) |