Kapatagan comprises 15 barangays with an estimated population of 4,469. 14 of its barangays (93%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bakikis | 389 | 0 | Dead zone: no towers from any source |
| Barao | 398 | 0 | Dead zone: no towers from any source |
| Bongabong | 1,021 | 0 | Dead zone: no towers from any source |
| Daguan | 87 | 1 | Crowdsourced signal only (no registered tower) |
| Inudaran | 57 | 0 | Dead zone: no towers from any source |
| Kabaniakawan | 241 | 0 | Dead zone: no towers from any source |
| Kapatagan | 312 | 0 | Dead zone: no towers from any source |
| Lusain | 367 | 0 | Dead zone: no towers from any source |
| Matimos | 156 | 0 | Dead zone: no towers from any source |
| Minimao | 145 | 0 | Dead zone: no towers from any source |
| Pinantao | 579 | 0 | Dead zone: no towers from any source |
| Salaman | 460 | 0 | Dead zone: no towers from any source |
| Sigayan | 170 | 0 | Dead zone: no towers from any source |
| Tabuan | 34 | 0 | Dead zone: no towers from any source |
| Upper Igabay | 53 | 0 | Dead zone: no towers from any source |