Placer comprises 35 barangays with an estimated population of 68,479. 34 of its barangays (97%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Aguada | 2,529 | 0 | Dead zone: no towers from any source |
| Ban-Ao | 848 | 0 | Dead zone: no towers from any source |
| Burabod | 1,850 | 19 | Crowdsourced signal only (no registered tower) |
| Cabangcalan | 2,055 | 0 | Dead zone: no towers from any source |
| Calumpang | 1,391 | 0 | Dead zone: no towers from any source |
| Camayabsan | 1,680 | 0 | Dead zone: no towers from any source |
| Daanlungsod | 4,269 | 0 | Dead zone: no towers from any source |
| Dangpanan | 1,653 | 0 | Dead zone: no towers from any source |
| Daraga | 5,295 | 0 | Dead zone: no towers from any source |
| Guin-Awayan | 1,188 | 0 | Dead zone: no towers from any source |
| Guinhan-Ayan | 1,350 | 0 | Dead zone: no towers from any source |
| Katipunan | 2,522 | 0 | Dead zone: no towers from any source |
| Libas | 857 | 0 | Dead zone: no towers from any source |
| Locso-An | 2,302 | 0 | Dead zone: no towers from any source |
| Luna | 4,115 | 0 | Dead zone: no towers from any source |
| Mahayag | 1,524 | 0 | Dead zone: no towers from any source |
| Mahayahay | 1,479 | 0 | Dead zone: no towers from any source |
| Manlut-Od | 2,292 | 0 | Dead zone: no towers from any source |
| Matagantang | 2,272 | 0 | Dead zone: no towers from any source |
| Naboctot | 308 | 0 | Dead zone: no towers from any source |
| Nagarao | 334 | 0 | Dead zone: no towers from any source |
| Nainday | 2,102 | 0 | Dead zone: no towers from any source |
| Naocondiot | 1,240 | 0 | Dead zone: no towers from any source |
| Pasiagon | 8,415 | 0 | Dead zone: no towers from any source |
| Pili | 1,527 | 0 | Dead zone: no towers from any source |
| Poblacion | 2,055 | 0 | Dead zone: no towers from any source |
| Puro | 580 | 0 | Dead zone: no towers from any source |
| Quibrada | 58 | 0 | Dead zone: no towers from any source |
| San Marcos | 1,887 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 958 | 0 | Dead zone: no towers from any source |
| Taboc | 1,538 | 0 | Dead zone: no towers from any source |
| Tan-Awan | 1,649 | 0 | Dead zone: no towers from any source |
| Taverna | 737 | 0 | Dead zone: no towers from any source |
| Tubod | 889 | 0 | Dead zone: no towers from any source |
| Villa Inocencio | 2,731 | 0 | Dead zone: no towers from any source |