Baclayon comprises 17 barangays with an estimated population of 19,391. 9 of its barangays (53%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Buenaventura | 490 | 0 | Dead zone: no towers from any source |
| Cambanac | 472 | 0 | Dead zone: no towers from any source |
| Dasitam | 716 | 0 | Dead zone: no towers from any source |
| Guiwanon | 1,603 | 4 | Crowdsourced signal only (no registered tower) |
| Landican | 665 | 1 | Crowdsourced signal only (no registered tower) |
| Laya | 982 | 2 | Crowdsourced signal only (no registered tower) |
| Libertad | 1,472 | 0 | Dead zone: no towers from any source |
| Montana | 1,490 | 4 | Crowdsourced signal only (no registered tower) |
| Pamilacan | 846 | 0 | Dead zone: no towers from any source |
| Payahan | 1,125 | 0 | Dead zone: no towers from any source |
| Poblacion | 1,940 | 13 | Crowdsourced signal only (no registered tower) |
| San Isidro | 1,020 | 0 | Dead zone: no towers from any source |
| San Roque | 1,168 | 0 | Dead zone: no towers from any source |
| San Vicente | 953 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Cruz | 1,745 | 8 | Crowdsourced signal only (no registered tower) |
| Taguihon | 2,012 | 4 | Crowdsourced signal only (no registered tower) |
| Tanday | 692 | 0 | Dead zone: no towers from any source |