Pilar comprises 19 barangays with an estimated population of 9,789. 17 of its barangays (89%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bolbolo | 914 | 0 | Dead zone: no towers from any source |
| Brookside | 286 | 0 | Dead zone: no towers from any source |
| Dalit | 1,204 | 3 | Crowdsourced signal only (no registered tower) |
| Dintan | 293 | 0 | Dead zone: no towers from any source |
| Gapang | 657 | 0 | Dead zone: no towers from any source |
| Kinabiti | 906 | 0 | Dead zone: no towers from any source |
| Maliplipit | 394 | 0 | Dead zone: no towers from any source |
| Nagcanasan | 236 | 0 | Dead zone: no towers from any source |
| Nanangduan | 450 | 0 | Dead zone: no towers from any source |
| Narnara | 151 | 0 | Dead zone: no towers from any source |
| Ocup | 341 | 0 | Dead zone: no towers from any source |
| Pang-ot | 477 | 0 | Dead zone: no towers from any source |
| Patad | 222 | 0 | Dead zone: no towers from any source |
| Poblacion | 1,857 | 1 | Crowdsourced signal only (no registered tower) |
| San Juan East | 239 | 0 | Dead zone: no towers from any source |
| San Juan West | 498 | 0 | Dead zone: no towers from any source |
| South Balioag | 333 | 0 | Dead zone: no towers from any source |
| Tikitik | 188 | 0 | Dead zone: no towers from any source |
| Villavieja | 143 | 0 | Dead zone: no towers from any source |