Mabini comprises 34 barangays with an estimated population of 53,398. 9 of its barangays (26%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Anilao East | 1,477 | 6 | Crowdsourced signal only (no registered tower) |
| Anilao Proper | 322 | 1 | Crowdsourced signal only (no registered tower) |
| Bagalangit | 3,106 | 15 | Crowdsourced signal only (no registered tower) |
| Bulacan | 2,252 | 1 | Crowdsourced signal only (no registered tower) |
| Calamias | 1,109 | 1 | Crowdsourced signal only (no registered tower) |
| Estrella | 926 | 0 | Dead zone: no towers from any source |
| Gasang | 2,579 | 2 | Crowdsourced signal only (no registered tower) |
| Laurel | 1,272 | 0 | Dead zone: no towers from any source |
| Ligaya | 1,088 | 0 | Dead zone: no towers from any source |
| Mainaga | 2,029 | 3 | Crowdsourced signal only (no registered tower) |
| Mainit | 999 | 6 | Crowdsourced signal only (no registered tower) |
| Majuben | 324 | 1 | Crowdsourced signal only (no registered tower) |
| Malimatoc I | 1,235 | 3 | Crowdsourced signal only (no registered tower) |
| Malimatoc II | 1,362 | 4 | Crowdsourced signal only (no registered tower) |
| Nag-Iba | 1,204 | 0 | Dead zone: no towers from any source |
| Pilahan | 867 | 0 | Dead zone: no towers from any source |
| Poblacion | 1,193 | 2 | Crowdsourced signal only (no registered tower) |
| Pulang Lupa | 1,903 | 1 | Crowdsourced signal only (no registered tower) |
| Pulong Anahao | 1,633 | 1 | Crowdsourced signal only (no registered tower) |
| Pulong Balibaguhan | 685 | 0 | Dead zone: no towers from any source |
| Pulong Niogan | 2,578 | 13 | Crowdsourced signal only (no registered tower) |
| Saguing | 1,350 | 1 | Crowdsourced signal only (no registered tower) |
| Sampaguita | 3,026 | 3 | Crowdsourced signal only (no registered tower) |
| San Francisco | 2,499 | 9 | Crowdsourced signal only (no registered tower) |
| San Jose | 1,539 | 9 | Crowdsourced signal only (no registered tower) |
| San Juan | 1,692 | 3 | Crowdsourced signal only (no registered tower) |
| San Teodoro | 1,945 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Ana | 545 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Mesa | 1,790 | 0 | Dead zone: no towers from any source |
| Santo Niño | 1,285 | 0 | Dead zone: no towers from any source |
| Santo Tomas | 1,768 | 0 | Dead zone: no towers from any source |
| Solo | 3,200 | 2 | Crowdsourced signal only (no registered tower) |
| Talaga East | 1,139 | 1 | Crowdsourced signal only (no registered tower) |
| Talaga Proper | 1,477 | 1 | Crowdsourced signal only (no registered tower) |