Pandan comprises 26 barangays with an estimated population of 17,175. 25 of its barangays (96%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagawang | 741 | 0 | Dead zone: no towers from any source |
| Balagñonan | 553 | 0 | Dead zone: no towers from any source |
| Baldoc | 437 | 0 | Dead zone: no towers from any source |
| Canlubi | 513 | 0 | Dead zone: no towers from any source |
| Catamban | 581 | 0 | Dead zone: no towers from any source |
| Cobo | 682 | 0 | Dead zone: no towers from any source |
| Hiyop | 112 | 0 | Dead zone: no towers from any source |
| Libod (Pob.) | 277 | 0 | Dead zone: no towers from any source |
| Lourdes | 55 | 0 | Dead zone: no towers from any source |
| Lumabao | 751 | 0 | Dead zone: no towers from any source |
| Marambong | 464 | 0 | Dead zone: no towers from any source |
| Napo (Pob.) | 478 | 0 | Dead zone: no towers from any source |
| Oga | 2,201 | 1 | Crowdsourced signal only (no registered tower) |
| Pandan del Norte (Pob.) | 735 | 0 | Dead zone: no towers from any source |
| Pandan del Sur (Pob.) | 554 | 0 | Dead zone: no towers from any source |
| Panuto | 603 | 0 | Dead zone: no towers from any source |
| Porot (San Jose) | 511 | 0 | Dead zone: no towers from any source |
| Salvacion (Tariwara) | 1,467 | 0 | Dead zone: no towers from any source |
| San Andres (Dinungsuran) | 70 | 0 | Dead zone: no towers from any source |
| San Isidro (Langob) | 684 | 0 | Dead zone: no towers from any source |
| San Rafael (Bogtong) | 346 | 0 | Dead zone: no towers from any source |
| San Roque | 662 | 0 | Dead zone: no towers from any source |
| Santa Cruz (Catagbacan) | 2,266 | 0 | Dead zone: no towers from any source |
| Tabugoc | 440 | 0 | Dead zone: no towers from any source |
| Tokio | 938 | 0 | Dead zone: no towers from any source |
| Wagdas | 54 | 0 | Dead zone: no towers from any source |