Valderrama comprises 22 barangays with an estimated population of 17,364. 22 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 |
|---|---|---|---|
| Alon | 239 | 0 | Dead zone: no towers from any source |
| Bakiang | 572 | 0 | Dead zone: no towers from any source |
| Binanogan | 364 | 0 | Dead zone: no towers from any source |
| Borocboroc | 658 | 0 | Dead zone: no towers from any source |
| Bugnay | 804 | 0 | Dead zone: no towers from any source |
| Buluangan I | 2,038 | 0 | Dead zone: no towers from any source |
| Buluangan II | 324 | 0 | Dead zone: no towers from any source |
| Bunsod | 798 | 0 | Dead zone: no towers from any source |
| Busog | 190 | 0 | Dead zone: no towers from any source |
| Cananghan | 176 | 0 | Dead zone: no towers from any source |
| Canipayan | 1,171 | 0 | Dead zone: no towers from any source |
| Cansilayan | 234 | 0 | Dead zone: no towers from any source |
| Culyat | 178 | 0 | Dead zone: no towers from any source |
| Iglinab | 876 | 0 | Dead zone: no towers from any source |
| Igmasandig | 323 | 0 | Dead zone: no towers from any source |
| Lublub | 993 | 0 | Dead zone: no towers from any source |
| Manlacbo | 636 | 0 | Dead zone: no towers from any source |
| Pandanan | 1,435 | 0 | Dead zone: no towers from any source |
| San Agustin | 1,162 | 0 | Dead zone: no towers from any source |
| Takas (Pob.) | 1,246 | 0 | Dead zone: no towers from any source |
| Tigmamale | 682 | 0 | Dead zone: no towers from any source |
| Ubos (Pob.) | 2,265 | 0 | Dead zone: no towers from any source |