Salcedo comprises 41 barangays with an estimated population of 19,866. 35 of its barangays (85%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abejao | 687 | 0 | Dead zone: no towers from any source |
| Alog | 261 | 1 | Crowdsourced signal only (no registered tower) |
| Asgad | 235 | 0 | Dead zone: no towers from any source |
| Bagtong | 1,339 | 1 | Crowdsourced signal only (no registered tower) |
| Balud | 426 | 0 | Dead zone: no towers from any source |
| Barangay 1 (Pob.) | 352 | 0 | Dead zone: no towers from any source |
| Barangay 10 (Pob.) | 90 | 0 | Dead zone: no towers from any source |
| Barangay 11 (Pob.) | 342 | 0 | Dead zone: no towers from any source |
| Barangay 12 (Pob.) | 174 | 0 | Dead zone: no towers from any source |
| Barangay 13 (Pob.) | 658 | 0 | Dead zone: no towers from any source |
| Barangay 2 (Pob.) | 1,100 | 0 | Dead zone: no towers from any source |
| Barangay 3 (Pob.) | 905 | 0 | Dead zone: no towers from any source |
| Barangay 4 (Pob.) | 13 | 0 | Dead zone: no towers from any source |
| Barangay 5 (Pob.) | 18 | 0 | Dead zone: no towers from any source |
| Barangay 6 (Pob.) | 14 | 0 | Dead zone: no towers from any source |
| Barangay 7 (Pob.) | 327 | 0 | Dead zone: no towers from any source |
| Barangay 8 (Pob.) | 0 | 0 | Dead zone: no towers from any source |
| Barangay 9 (Pob.) | 523 | 0 | Dead zone: no towers from any source |
| Buabua | 383 | 0 | Dead zone: no towers from any source |
| Burak | 989 | 0 | Dead zone: no towers from any source |
| Butig | 205 | 0 | Dead zone: no towers from any source |
| Cagaut | 684 | 0 | Dead zone: no towers from any source |
| Camanga | 542 | 0 | Dead zone: no towers from any source |
| Cantomoja | 496 | 0 | Dead zone: no towers from any source |
| Carapdapan | 438 | 0 | Dead zone: no towers from any source |
| Caridad | 257 | 1 | Crowdsourced signal only (no registered tower) |
| Casili-on | 532 | 2 | Crowdsourced signal only (no registered tower) |
| Iberan | 121 | 0 | Dead zone: no towers from any source |
| Jagnaya | 214 | 0 | Dead zone: no towers from any source |
| Lusod | 100 | 0 | Dead zone: no towers from any source |
| Malbog | 259 | 0 | Dead zone: no towers from any source |
| Maliwaliw | 231 | 1 | Crowdsourced signal only (no registered tower) |
| Matarinao | 1,383 | 0 | Dead zone: no towers from any source |
| Naparaan | 2,224 | 1 | Crowdsourced signal only (no registered tower) |
| Palanas | 883 | 0 | Dead zone: no towers from any source |
| San Roque (Bugay) | 235 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 169 | 0 | Dead zone: no towers from any source |
| Seguinon | 514 | 0 | Dead zone: no towers from any source |
| Tacla-on | 313 | 0 | Dead zone: no towers from any source |
| Tagbacan | 561 | 0 | Dead zone: no towers from any source |
| Talangdawan | 669 | 0 | Dead zone: no towers from any source |