Pilar comprises 15 barangays with an estimated population of 13,893. 13 of its barangays (87%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Asinan (Pob.) | 526 | 0 | Dead zone: no towers from any source |
| Caridad | 2,984 | 0 | Dead zone: no towers from any source |
| Centro (Pob.) | 11 | 0 | Dead zone: no towers from any source |
| Consolacion | 1,145 | 3 | Crowdsourced signal only (no registered tower) |
| Datu | 2,507 | 0 | Dead zone: no towers from any source |
| Dayaohay | 566 | 0 | Dead zone: no towers from any source |
| Jaboy | 960 | 0 | Dead zone: no towers from any source |
| Katipunan | 911 | 0 | Dead zone: no towers from any source |
| Maasin | 333 | 0 | Dead zone: no towers from any source |
| Mabini | 667 | 0 | Dead zone: no towers from any source |
| Mabuhay | 310 | 0 | Dead zone: no towers from any source |
| Pilaring (Pob.) | 257 | 3 | Crowdsourced signal only (no registered tower) |
| Punta (Pob.) | 14 | 0 | Dead zone: no towers from any source |
| Salvacion | 1,332 | 0 | Dead zone: no towers from any source |
| San Roque | 1,370 | 0 | Dead zone: no towers from any source |