Magallanes comprises 16 barangays with an estimated population of 31,296. 6 of its barangays (38%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baliwag | 1,925 | 0 | Dead zone: no towers from any source |
| Barangay 1 (Pob.) | 1,167 | 0 | Dead zone: no towers from any source |
| Barangay 2 (Pob.) | 178 | 3 | Crowdsourced signal only (no registered tower) |
| Barangay 3 (Pob.) | 1,472 | 0 | Dead zone: no towers from any source |
| Barangay 4 (Pob.) | 256 | 4 | Crowdsourced signal only (no registered tower) |
| Barangay 5 (Pob.) | 1,188 | 3 | Crowdsourced signal only (no registered tower) |
| Bendita I | 4,070 | 3 | Crowdsourced signal only (no registered tower) |
| Bendita II | 1,762 | 1 | Crowdsourced signal only (no registered tower) |
| Caluangan | 3,820 | 3 | Crowdsourced signal only (no registered tower) |
| Kabulusan | 3,373 | 7 | Crowdsourced signal only (no registered tower) |
| Medina | 2,494 | 10 | Crowdsourced signal only (no registered tower) |
| Pacheco | 2,520 | 0 | Dead zone: no towers from any source |
| Ramirez | 3,408 | 3 | Crowdsourced signal only (no registered tower) |
| San Agustin | 349 | 1 | Crowdsourced signal only (no registered tower) |
| Tua | 1,336 | 0 | Dead zone: no towers from any source |
| Urdaneta | 1,978 | 0 | Dead zone: no towers from any source |