Pilar comprises 19 barangays with an estimated population of 39,401. 8 of its barangays (42%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Ala-uli | 2,587 | 30 | Crowdsourced signal only (no registered tower) |
| Bagumbayan | 1,074 | 0 | Dead zone: no towers from any source |
| Balut I | 1,846 | 0 | Dead zone: no towers from any source |
| Balut II | 780 | 0 | Dead zone: no towers from any source |
| Bantan Munti | 779 | 4 | Crowdsourced signal only (no registered tower) |
| Burgos | 70 | 1 | Crowdsourced signal only (no registered tower) |
| Del Rosario (Pob.) | 785 | 0 | Dead zone: no towers from any source |
| Diwa | 2,135 | 9 | Crowdsourced signal only (no registered tower) |
| Landing | 1,835 | 0 | Dead zone: no towers from any source |
| Liyang | 1,908 | 8 | Crowdsourced signal only (no registered tower) |
| Nagwaling | 2,273 | 7 | Crowdsourced signal only (no registered tower) |
| Panilao | 8,960 | 6 | Crowdsourced signal only (no registered tower) |
| Pantingan | 835 | 7 | Crowdsourced signal only (no registered tower) |
| Poblacion | 448 | 0 | Dead zone: no towers from any source |
| Rizal (Pob.) | 2,241 | 8 | Crowdsourced signal only (no registered tower) |
| Santa Rosa | 7,065 | 4 | Crowdsourced signal only (no registered tower) |
| Wakas North | 1,669 | 4 | Crowdsourced signal only (no registered tower) |
| Wakas South | 698 | 0 | Dead zone: no towers from any source |
| Wawa | 1,413 | 0 | Dead zone: no towers from any source |