Labo comprises 52 barangays with an estimated population of 106,117. 17 of its barangays (33%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Anahaw (Pob.) | 356 | 5 | Crowdsourced signal only (no registered tower) |
| Anameam | 1,590 | 2 | Crowdsourced signal only (no registered tower) |
| Awitan | 1,001 | 0 | Dead zone: no towers from any source |
| Baay | 5,322 | 0 | Dead zone: no towers from any source |
| Bagacay | 1,310 | 12 | Crowdsourced signal only (no registered tower) |
| Bagong Silang I | 2,715 | 6 | Crowdsourced signal only (no registered tower) |
| Bagong Silang II | 1,145 | 0 | Dead zone: no towers from any source |
| Bagong Silang III (Silang) | 1,111 | 0 | Dead zone: no towers from any source |
| Bakiad | 1,196 | 1 | Crowdsourced signal only (no registered tower) |
| Bautista | 4,096 | 2 | Crowdsourced signal only (no registered tower) |
| Bayabas | 1,438 | 1 | Crowdsourced signal only (no registered tower) |
| Bayan-bayan | 1,137 | 0 | Dead zone: no towers from any source |
| Benit | 2,188 | 0 | Dead zone: no towers from any source |
| Bulhao | 863 | 2 | Crowdsourced signal only (no registered tower) |
| Cabatuhan | 2,562 | 2 | Crowdsourced signal only (no registered tower) |
| Cabusay | 879 | 1 | Crowdsourced signal only (no registered tower) |
| Calabasa | 1,594 | 1 | Crowdsourced signal only (no registered tower) |
| Canapawan | 2,409 | 17 | Crowdsourced signal only (no registered tower) |
| Daguit | 3,855 | 15 | Crowdsourced signal only (no registered tower) |
| Dalas | 5,007 | 2 | Crowdsourced signal only (no registered tower) |
| Dumagmang | 3,110 | 0 | Dead zone: no towers from any source |
| Exciban | 3,381 | 3 | Crowdsourced signal only (no registered tower) |
| Fundado | 951 | 1 | Crowdsourced signal only (no registered tower) |
| Guinacutan | 474 | 2 | Crowdsourced signal only (no registered tower) |
| Guisican | 2,192 | 3 | Crowdsourced signal only (no registered tower) |
| Gumamela (Pob.) | 242 | 2 | Crowdsourced signal only (no registered tower) |
| Iberica | 2,224 | 0 | Dead zone: no towers from any source |
| Kalamunding (Pob.) | 375 | 12 | Crowdsourced signal only (no registered tower) |
| Lugui | 7,595 | 9 | Crowdsourced signal only (no registered tower) |
| Mabilo I | 1,213 | 2 | Crowdsourced signal only (no registered tower) |
| Mabilo II | 7,426 | 1 | Crowdsourced signal only (no registered tower) |
| Macogon | 2,613 | 5 | Crowdsourced signal only (no registered tower) |
| Mahawan-hawan | 270 | 0 | Dead zone: no towers from any source |
| Malangcao-Basud | 3,487 | 9 | Crowdsourced signal only (no registered tower) |
| Malasugui | 984 | 1 | Crowdsourced signal only (no registered tower) |
| Malatap | 2,155 | 3 | Crowdsourced signal only (no registered tower) |
| Malaya | 1,215 | 0 | Dead zone: no towers from any source |
| Malibago | 1,471 | 0 | Dead zone: no towers from any source |
| Maot | 1,738 | 2 | Crowdsourced signal only (no registered tower) |
| Masalong | 1,710 | 4 | Crowdsourced signal only (no registered tower) |
| Matanlang | 614 | 0 | Dead zone: no towers from any source |
| Napaod | 1,045 | 0 | Dead zone: no towers from any source |
| Pag-Asa | 1,300 | 0 | Dead zone: no towers from any source |
| Pangpang | 1,466 | 1 | Crowdsourced signal only (no registered tower) |
| Pinya (Pob.) | 139 | 0 | Dead zone: no towers from any source |
| San Antonio | 3,243 | 1 | Crowdsourced signal only (no registered tower) |
| San Francisco (Pob.) | 395 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 1,506 | 0 | Dead zone: no towers from any source |
| Submakin | 1,971 | 2 | Crowdsourced signal only (no registered tower) |
| Talobatib | 2,676 | 9 | Crowdsourced signal only (no registered tower) |
| Tigbinan | 2,694 | 12 | Crowdsourced signal only (no registered tower) |
| Tulay Na Lupa | 2,468 | 4 | Crowdsourced signal only (no registered tower) |