Culion comprises 14 barangays with an estimated population of 18,288. 13 of its barangays (93%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balala | 746 | 0 | Dead zone: no towers from any source |
| Baldat | 1,000 | 0 | Dead zone: no towers from any source |
| Binudac | 2,267 | 0 | Dead zone: no towers from any source |
| Burabod | 614 | 0 | Dead zone: no towers from any source |
| Culango | 153 | 0 | Dead zone: no towers from any source |
| De Carabao | 2,481 | 0 | Dead zone: no towers from any source |
| Galoc | 1,756 | 0 | Dead zone: no towers from any source |
| Halsey | 722 | 0 | Dead zone: no towers from any source |
| Jardin | 631 | 0 | Dead zone: no towers from any source |
| Libis | 843 | 2 | Crowdsourced signal only (no registered tower) |
| Luac | 1,866 | 0 | Dead zone: no towers from any source |
| Malaking Patag | 1,250 | 0 | Dead zone: no towers from any source |
| Osmeña | 3,449 | 0 | Dead zone: no towers from any source |
| Tiza | 510 | 0 | Dead zone: no towers from any source |