Loboc comprises 28 barangays with an estimated population of 16,385. 15 of its barangays (54%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agape | 349 | 4 | Crowdsourced signal only (no registered tower) |
| Alegria | 397 | 0 | Dead zone: no towers from any source |
| Bagumbayan | 433 | 4 | Crowdsourced signal only (no registered tower) |
| Bahian | 443 | 3 | Crowdsourced signal only (no registered tower) |
| Bonbon Lower | 228 | 0 | Dead zone: no towers from any source |
| Bonbon Upper | 1,019 | 1 | Crowdsourced signal only (no registered tower) |
| Buenavista | 1,285 | 0 | Dead zone: no towers from any source |
| Bugho | 271 | 0 | Dead zone: no towers from any source |
| Cabadiangan | 208 | 0 | Dead zone: no towers from any source |
| Calunasan Norte | 814 | 1 | Crowdsourced signal only (no registered tower) |
| Calunasan Sur | 244 | 0 | Dead zone: no towers from any source |
| Camayaan | 941 | 5 | Crowdsourced signal only (no registered tower) |
| Cambance | 726 | 0 | Dead zone: no towers from any source |
| Candabong | 547 | 7 | Crowdsourced signal only (no registered tower) |
| Candasag | 61 | 0 | Dead zone: no towers from any source |
| Canlasid | 162 | 0 | Dead zone: no towers from any source |
| Gon-ob | 360 | 0 | Dead zone: no towers from any source |
| Gotozon | 1,103 | 12 | Crowdsourced signal only (no registered tower) |
| Jimilian | 1,712 | 5 | Crowdsourced signal only (no registered tower) |
| Oy | 1,651 | 0 | Dead zone: no towers from any source |
| Poblacion Ondol | 650 | 0 | Dead zone: no towers from any source |
| Poblacion Sawang | 341 | 5 | Crowdsourced signal only (no registered tower) |
| Quinoguitan | 290 | 1 | Crowdsourced signal only (no registered tower) |
| Taytay | 346 | 0 | Dead zone: no towers from any source |
| Tigbao | 315 | 0 | Dead zone: no towers from any source |
| Ugpong | 249 | 0 | Dead zone: no towers from any source |
| Valladolid | 668 | 6 | Crowdsourced signal only (no registered tower) |
| Villaflor | 572 | 2 | Crowdsourced signal only (no registered tower) |