Romblon (Capital) comprises 31 barangays with an estimated population of 31,330. 23 of its barangays (74%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agbaluto | 537 | 0 | Dead zone: no towers from any source |
| Agbudia | 311 | 1 | Crowdsourced signal only (no registered tower) |
| Agnaga | 693 | 0 | Dead zone: no towers from any source |
| Agnay | 618 | 0 | Dead zone: no towers from any source |
| Agnipa | 1,274 | 0 | Dead zone: no towers from any source |
| Agpanabat | 1,080 | 0 | Dead zone: no towers from any source |
| Agtongo | 1,750 | 0 | Dead zone: no towers from any source |
| Alad | 669 | 0 | Dead zone: no towers from any source |
| Bagacay | 2,826 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay I (Pob.) | 215 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay II (Pob.) | 188 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay III (Pob.) | 223 | 0 | Dead zone: no towers from any source |
| Barangay IV (Pob.) | 282 | 0 | Dead zone: no towers from any source |
| Cajimos | 2,302 | 0 | Dead zone: no towers from any source |
| Calabogo | 542 | 1 | Crowdsourced signal only (no registered tower) |
| Capaclan | 4,352 | 3 | Crowdsourced signal only (no registered tower) |
| Cobrador (Naguso) | 508 | 0 | Dead zone: no towers from any source |
| Ginablan | 428 | 0 | Dead zone: no towers from any source |
| Guimpingan | 539 | 0 | Dead zone: no towers from any source |
| Ilauran | 2,034 | 0 | Dead zone: no towers from any source |
| Lamao | 467 | 0 | Dead zone: no towers from any source |
| Li-o | 1,638 | 0 | Dead zone: no towers from any source |
| Logbon | 434 | 0 | Dead zone: no towers from any source |
| Lonos | 1,768 | 0 | Dead zone: no towers from any source |
| Lunas | 895 | 0 | Dead zone: no towers from any source |
| Macalas | 817 | 3 | Crowdsourced signal only (no registered tower) |
| Mapula | 719 | 0 | Dead zone: no towers from any source |
| Palje | 420 | 0 | Dead zone: no towers from any source |
| Sablayan | 978 | 0 | Dead zone: no towers from any source |
| Sawang | 1,234 | 0 | Dead zone: no towers from any source |
| Tambac | 589 | 1 | Crowdsourced signal only (no registered tower) |