Larena comprises 23 barangays with an estimated population of 11,816. 12 of its barangays (52%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagacay | 712 | 0 | Dead zone: no towers from any source |
| Balolang | 206 | 0 | Dead zone: no towers from any source |
| Basac | 436 | 0 | Dead zone: no towers from any source |
| Bintangan | 413 | 0 | Dead zone: no towers from any source |
| Bontod | 322 | 4 | Crowdsourced signal only (no registered tower) |
| Cabulihan | 298 | 0 | Dead zone: no towers from any source |
| Calunasan | 318 | 2 | Crowdsourced signal only (no registered tower) |
| Candigum | 212 | 0 | Dead zone: no towers from any source |
| Cang-allas | 381 | 2 | Crowdsourced signal only (no registered tower) |
| Cang-apa | 175 | 0 | Dead zone: no towers from any source |
| Cangbagsa | 583 | 2 | Crowdsourced signal only (no registered tower) |
| Cangmalalag | 455 | 1 | Crowdsourced signal only (no registered tower) |
| Canlambo | 886 | 0 | Dead zone: no towers from any source |
| Canlasog | 342 | 0 | Dead zone: no towers from any source |
| Catamboan | 730 | 0 | Dead zone: no towers from any source |
| Helen (Datag) | 1,540 | 4 | Crowdsourced signal only (no registered tower) |
| Nonoc | 927 | 1 | Verified coverage (NTC + crowdsourced) |
| North Poblacion | 421 | 2 | Crowdsourced signal only (no registered tower) |
| Ponong | 185 | 0 | Dead zone: no towers from any source |
| Sabang | 1,302 | 2 | Crowdsourced signal only (no registered tower) |
| Sandugan | 350 | 2 | Crowdsourced signal only (no registered tower) |
| South Poblacion | 205 | 0 | Dead zone: no towers from any source |
| Taculing | 417 | 1 | Crowdsourced signal only (no registered tower) |