San Policarpo comprises 17 barangays with an estimated population of 12,009. 17 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alugan | 1,902 | 0 | Dead zone: no towers from any source |
| Bahay | 1,154 | 0 | Dead zone: no towers from any source |
| Bangon | 466 | 0 | Dead zone: no towers from any source |
| Barangay No. 1 (Pob.) | 167 | 0 | Dead zone: no towers from any source |
| Barangay No. 2 (Pob.) | 11 | 0 | Dead zone: no towers from any source |
| Barangay No. 3 (Pob.) | 618 | 0 | Dead zone: no towers from any source |
| Barangay No. 4 (Pob.) | 161 | 0 | Dead zone: no towers from any source |
| Barangay No. 5 (Pob.) | 528 | 0 | Dead zone: no towers from any source |
| Baras (Lipata) | 1,113 | 0 | Dead zone: no towers from any source |
| Binogawan | 766 | 0 | Dead zone: no towers from any source |
| Cajagwayan | 437 | 0 | Dead zone: no towers from any source |
| Japunan | 766 | 0 | Dead zone: no towers from any source |
| Natividad | 419 | 0 | Dead zone: no towers from any source |
| Pangpang | 1,819 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 300 | 0 | Dead zone: no towers from any source |
| Tabo | 540 | 0 | Dead zone: no towers from any source |
| Tan-awan | 842 | 0 | Dead zone: no towers from any source |