Mabini comprises 16 barangays with an estimated population of 32,159. 15 of its barangays (94%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bacnit | 1,947 | 0 | Dead zone: no towers from any source |
| Barlo | 1,327 | 0 | Dead zone: no towers from any source |
| Caabiangaan | 1,386 | 0 | Dead zone: no towers from any source |
| Cabanaetan | 2,433 | 0 | Dead zone: no towers from any source |
| Cabinuangan | 1,649 | 0 | Dead zone: no towers from any source |
| Calzada | 2,866 | 0 | Dead zone: no towers from any source |
| Caranglaan | 1,371 | 0 | Dead zone: no towers from any source |
| De Guzman | 1,413 | 0 | Dead zone: no towers from any source |
| Luna | 2,868 | 1 | Crowdsourced signal only (no registered tower) |
| Magalong | 705 | 0 | Dead zone: no towers from any source |
| Nibaliw | 1,662 | 0 | Dead zone: no towers from any source |
| Patar | 962 | 0 | Dead zone: no towers from any source |
| Poblacion | 3,734 | 0 | Dead zone: no towers from any source |
| San Pedro | 567 | 0 | Dead zone: no towers from any source |
| Tagudin | 4,798 | 0 | Dead zone: no towers from any source |
| Villacorta | 2,471 | 0 | Dead zone: no towers from any source |