Borbon comprises 19 barangays with an estimated population of 28,010. 12 of its barangays (63%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagacay | 1,159 | 0 | Dead zone: no towers from any source |
| Bili | 431 | 0 | Dead zone: no towers from any source |
| Bingay | 806 | 1 | Crowdsourced signal only (no registered tower) |
| Bongdo | 961 | 1 | Crowdsourced signal only (no registered tower) |
| Bongdo Gua | 720 | 0 | Dead zone: no towers from any source |
| Bongoyan | 1,189 | 6 | Crowdsourced signal only (no registered tower) |
| Cadaruhan | 2,921 | 0 | Dead zone: no towers from any source |
| Cajel | 1,346 | 0 | Dead zone: no towers from any source |
| Campusong | 1,243 | 0 | Dead zone: no towers from any source |
| Clavera | 1,547 | 2 | Crowdsourced signal only (no registered tower) |
| Don Gregorio Antigua (Taytayan) | 2,392 | 4 | Crowdsourced signal only (no registered tower) |
| Laaw | 1,000 | 3 | Crowdsourced signal only (no registered tower) |
| Lugo | 2,384 | 4 | Crowdsourced signal only (no registered tower) |
| Managase | 1,083 | 0 | Dead zone: no towers from any source |
| Poblacion | 4,709 | 0 | Dead zone: no towers from any source |
| Sagay | 626 | 0 | Dead zone: no towers from any source |
| San Jose | 830 | 0 | Dead zone: no towers from any source |
| Tabunan | 1,870 | 0 | Dead zone: no towers from any source |
| Tagnucan | 793 | 0 | Dead zone: no towers from any source |