Polanco comprises 30 barangays with an estimated population of 51,181. 25 of its barangays (83%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Anastacio | 1,714 | 0 | Dead zone: no towers from any source |
| Bandera | 1,608 | 0 | Dead zone: no towers from any source |
| Bethlehem | 933 | 0 | Dead zone: no towers from any source |
| Dangi | 204 | 0 | Dead zone: no towers from any source |
| Dansullan | 913 | 0 | Dead zone: no towers from any source |
| De Venta Perla | 382 | 0 | Dead zone: no towers from any source |
| Guinles | 2,760 | 1 | Crowdsourced signal only (no registered tower) |
| Isis | 1,471 | 0 | Dead zone: no towers from any source |
| Labrador (Prinda) | 2,832 | 0 | Dead zone: no towers from any source |
| Lapayanbaja | 1,628 | 0 | Dead zone: no towers from any source |
| Letapan | 2,359 | 0 | Dead zone: no towers from any source |
| Linabo | 592 | 0 | Dead zone: no towers from any source |
| Lingasad | 3,562 | 0 | Dead zone: no towers from any source |
| Macleodes | 337 | 0 | Dead zone: no towers from any source |
| Magangon | 925 | 0 | Dead zone: no towers from any source |
| Maligaya | 241 | 0 | Dead zone: no towers from any source |
| Milad | 436 | 0 | Dead zone: no towers from any source |
| New Lebangon | 3,289 | 0 | Dead zone: no towers from any source |
| New Sicayab | 431 | 0 | Dead zone: no towers from any source |
| Obay | 3,552 | 0 | Dead zone: no towers from any source |
| Pian | 1,257 | 0 | Dead zone: no towers from any source |
| Poblacion North | 835 | 10 | Crowdsourced signal only (no registered tower) |
| Poblacion South | 2,584 | 1 | Registered tower only (not crowd-verified) |
| San Antonio (Paetan) | 3,389 | 1 | Registered tower only (not crowd-verified) |
| San Miguel (Loboc) | 2,198 | 0 | Dead zone: no towers from any source |
| San Pedro | 933 | 0 | Dead zone: no towers from any source |
| Santo Niño (Lantoy) | 914 | 1 | Crowdsourced signal only (no registered tower) |
| Sianib | 3,803 | 0 | Dead zone: no towers from any source |
| Silawe | 2,399 | 0 | Dead zone: no towers from any source |
| Villahermosa | 2,700 | 0 | Dead zone: no towers from any source |