Pantabangan comprises 14 barangays with an estimated population of 34,399. 7 of its barangays (50%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Cadaclan | 2,015 | 0 | Dead zone: no towers from any source |
| Cambitala | 2,481 | 17 | Crowdsourced signal only (no registered tower) |
| Conversion | 4,392 | 6 | Crowdsourced signal only (no registered tower) |
| Fatima | 3,662 | 0 | Dead zone: no towers from any source |
| Ganduz | 1,085 | 4 | Crowdsourced signal only (no registered tower) |
| Liberty | 4,084 | 0 | Dead zone: no towers from any source |
| Malbang | 1,840 | 18 | Crowdsourced signal only (no registered tower) |
| Marikit | 1,035 | 0 | Dead zone: no towers from any source |
| Napon-Napon | 591 | 0 | Dead zone: no towers from any source |
| Poblacion East | 747 | 13 | Crowdsourced signal only (no registered tower) |
| Poblacion West | 2,656 | 0 | Dead zone: no towers from any source |
| Sampaloc | 1,705 | 0 | Dead zone: no towers from any source |
| San Juan | 2,556 | 6 | Crowdsourced signal only (no registered tower) |
| Villarica | 5,550 | 1 | Crowdsourced signal only (no registered tower) |