Pilar comprises 49 barangays with an estimated population of 77,412. 43 of its barangays (88%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abas | 1,362 | 0 | Dead zone: no towers from any source |
| Abucay | 2,114 | 0 | Dead zone: no towers from any source |
| Bantayan | 1,319 | 0 | Dead zone: no towers from any source |
| Banuyo (Pob.) | 1,781 | 0 | Dead zone: no towers from any source |
| Bayasong | 1,175 | 0 | Dead zone: no towers from any source |
| Bayawas | 586 | 0 | Dead zone: no towers from any source |
| Binanuahan (Pob.) | 687 | 0 | Dead zone: no towers from any source |
| Cabiguan | 876 | 0 | Dead zone: no towers from any source |
| Cagdongon | 1,850 | 0 | Dead zone: no towers from any source |
| Calongay | 3,922 | 0 | Dead zone: no towers from any source |
| Calpi | 822 | 0 | Dead zone: no towers from any source |
| Catamlangan | 582 | 0 | Dead zone: no towers from any source |
| Comapo-capo | 737 | 0 | Dead zone: no towers from any source |
| Danlog | 1,355 | 6 | Crowdsourced signal only (no registered tower) |
| Dao (Pob.) | 2,397 | 0 | Dead zone: no towers from any source |
| Dapdap | 1,212 | 0 | Dead zone: no towers from any source |
| Del Rosario (Bual) | 4,266 | 5 | Crowdsourced signal only (no registered tower) |
| Esmerada | 700 | 0 | Dead zone: no towers from any source |
| Esperanza | 1,242 | 1 | Crowdsourced signal only (no registered tower) |
| Ginablan | 2,574 | 0 | Dead zone: no towers from any source |
| Guiron | 620 | 0 | Dead zone: no towers from any source |
| Inang | 1,496 | 0 | Dead zone: no towers from any source |
| Inapugan | 1,360 | 0 | Dead zone: no towers from any source |
| Leona | 167 | 0 | Dead zone: no towers from any source |
| Lipason | 2,559 | 0 | Dead zone: no towers from any source |
| Lourdes | 1,147 | 0 | Dead zone: no towers from any source |
| Lubiano | 392 | 0 | Dead zone: no towers from any source |
| Lumbang | 1,347 | 0 | Dead zone: no towers from any source |
| Lungib | 1,869 | 0 | Dead zone: no towers from any source |
| Mabanate | 4,502 | 0 | Dead zone: no towers from any source |
| Malbog | 1,344 | 0 | Dead zone: no towers from any source |
| Marifosque (Pob.) | 2,559 | 0 | Dead zone: no towers from any source |
| Mercedes | 2,758 | 0 | Dead zone: no towers from any source |
| Migabod | 402 | 0 | Dead zone: no towers from any source |
| Naspi | 1,342 | 0 | Dead zone: no towers from any source |
| Palanas | 1,609 | 0 | Dead zone: no towers from any source |
| Pangpang | 1,305 | 0 | Dead zone: no towers from any source |
| Pinagsalog | 273 | 0 | Dead zone: no towers from any source |
| Pineda | 686 | 0 | Dead zone: no towers from any source |
| Poctol | 783 | 1 | Crowdsourced signal only (no registered tower) |
| Pudo | 784 | 0 | Dead zone: no towers from any source |
| Putiao | 1,923 | 2 | Crowdsourced signal only (no registered tower) |
| Sacnangan | 1,111 | 0 | Dead zone: no towers from any source |
| Salvacion | 2,521 | 5 | Crowdsourced signal only (no registered tower) |
| San Antonio (Millabas) | 538 | 0 | Dead zone: no towers from any source |
| San Antonio (Sapa) | 2,982 | 0 | Dead zone: no towers from any source |
| San Jose | 890 | 0 | Dead zone: no towers from any source |
| San Rafael | 2,898 | 0 | Dead zone: no towers from any source |
| Santa Fe | 3,686 | 0 | Dead zone: no towers from any source |