Balasan comprises 23 barangays with an estimated population of 37,871. 13 of its barangays (57%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Aranjuez | 2,509 | 0 | Dead zone: no towers from any source |
| Bacolod | 820 | 0 | Dead zone: no towers from any source |
| Balanti-an | 1,688 | 2 | Crowdsourced signal only (no registered tower) |
| Batuan | 1,180 | 0 | Dead zone: no towers from any source |
| Cabalic | 1,437 | 0 | Dead zone: no towers from any source |
| Camambugan | 2,894 | 7 | Crowdsourced signal only (no registered tower) |
| Dolores | 804 | 0 | Dead zone: no towers from any source |
| Gimamanay | 1,126 | 0 | Dead zone: no towers from any source |
| Ipil | 1,057 | 0 | Dead zone: no towers from any source |
| Kinalkalan | 1,549 | 2 | Crowdsourced signal only (no registered tower) |
| Lawis | 1,761 | 0 | Dead zone: no towers from any source |
| Malapoc | 602 | 0 | Dead zone: no towers from any source |
| Mamhut Norte | 2,061 | 1 | Crowdsourced signal only (no registered tower) |
| Mamhut Sur | 1,160 | 0 | Dead zone: no towers from any source |
| Maya | 2,544 | 2 | Crowdsourced signal only (no registered tower) |
| Pani-an | 2,511 | 3 | Crowdsourced signal only (no registered tower) |
| Poblacion Norte | 1,018 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion Sur | 2,995 | 2 | Crowdsourced signal only (no registered tower) |
| Quiasan | 1,369 | 0 | Dead zone: no towers from any source |
| Salong | 1,301 | 0 | Dead zone: no towers from any source |
| Salvacion | 1,112 | 1 | Crowdsourced signal only (no registered tower) |
| Tingui-an | 2,360 | 5 | Crowdsourced signal only (no registered tower) |
| Zaragosa | 2,013 | 0 | Dead zone: no towers from any source |