Carles comprises 33 barangays with an estimated population of 54,782. 21 of its barangays (64%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abong | 3,636 | 3 | Crowdsourced signal only (no registered tower) |
| Alipata | 1,106 | 0 | Dead zone: no towers from any source |
| Asluman | 2,059 | 0 | Dead zone: no towers from any source |
| Bancal | 5,445 | 3 | Crowdsourced signal only (no registered tower) |
| Barangcalan | 975 | 1 | Crowdsourced signal only (no registered tower) |
| Barosbos | 2,699 | 2 | Crowdsourced signal only (no registered tower) |
| Binuluangan | 1,914 | 0 | Dead zone: no towers from any source |
| Bito-on | 1,874 | 0 | Dead zone: no towers from any source |
| Bolo | 1,302 | 0 | Dead zone: no towers from any source |
| Buaya | 1,365 | 0 | Dead zone: no towers from any source |
| Buenavista | 471 | 0 | Dead zone: no towers from any source |
| Cabilao Grande | 846 | 0 | Dead zone: no towers from any source |
| Cabilao Pequeño | 1,160 | 1 | Crowdsourced signal only (no registered tower) |
| Cabuguana | 1,161 | 0 | Dead zone: no towers from any source |
| Cawayan | 3,290 | 12 | Crowdsourced signal only (no registered tower) |
| Dayhagan | 1,114 | 0 | Dead zone: no towers from any source |
| Gabi | 1,359 | 0 | Dead zone: no towers from any source |
| Granada | 1,959 | 0 | Dead zone: no towers from any source |
| Guinticgan | 2,576 | 1 | Crowdsourced signal only (no registered tower) |
| Isla de Cana | 206 | 0 | Dead zone: no towers from any source |
| Lantangan | 1,959 | 0 | Dead zone: no towers from any source |
| Manlot | 334 | 0 | Dead zone: no towers from any source |
| Nalumsan | 1,470 | 2 | Crowdsourced signal only (no registered tower) |
| Pantalan | 848 | 0 | Dead zone: no towers from any source |
| Poblacion | 3,794 | 6 | Crowdsourced signal only (no registered tower) |
| Punta (Bolocawe) | 630 | 3 | Crowdsourced signal only (no registered tower) |
| Punta Batuanan | 844 | 0 | Dead zone: no towers from any source |
| San Fernando | 1,518 | 0 | Dead zone: no towers from any source |
| Tabugon | 1,125 | 0 | Dead zone: no towers from any source |
| Talingting | 520 | 0 | Dead zone: no towers from any source |
| Tarong | 2,520 | 13 | Crowdsourced signal only (no registered tower) |
| Tinigban | 799 | 0 | Dead zone: no towers from any source |
| Tupaz | 1,904 | 2 | Crowdsourced signal only (no registered tower) |