Pasacao comprises 19 barangays with an estimated population of 57,650. 15 of its barangays (79%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Antipolo | 819 | 0 | Dead zone: no towers from any source |
| Bagong Silang | 1,175 | 0 | Dead zone: no towers from any source |
| Bahay | 3,385 | 1 | Crowdsourced signal only (no registered tower) |
| Balogo | 4,744 | 14 | Crowdsourced signal only (no registered tower) |
| Caranan | 10,086 | 0 | Dead zone: no towers from any source |
| Cuco | 3,355 | 0 | Dead zone: no towers from any source |
| Dalupaon | 4,262 | 0 | Dead zone: no towers from any source |
| Hubo | 739 | 0 | Dead zone: no towers from any source |
| Itulan | 949 | 0 | Dead zone: no towers from any source |
| Macad (Hebrio Lourdes) | 3,074 | 0 | Dead zone: no towers from any source |
| Odicon | 2,531 | 0 | Dead zone: no towers from any source |
| Quitang | 4,243 | 0 | Dead zone: no towers from any source |
| Salvacion | 1,517 | 0 | Dead zone: no towers from any source |
| San Antonio | 751 | 0 | Dead zone: no towers from any source |
| San Cirilo (Pob.) | 3,800 | 0 | Dead zone: no towers from any source |
| Santa Rosa del Norte (Pob.) | 6,418 | 8 | Crowdsourced signal only (no registered tower) |
| Santa Rosa del Sur (Pob.) | 2,139 | 1 | Crowdsourced signal only (no registered tower) |
| Tilnac | 922 | 0 | Dead zone: no towers from any source |
| Tinalmud | 2,741 | 0 | Dead zone: no towers from any source |