Langiden comprises 6 barangays with an estimated population of 3,135. 5 of its barangays (83%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baac | 256 | 0 | Dead zone: no towers from any source |
| Dalayap (Nalaas) | 285 | 0 | Dead zone: no towers from any source |
| Mabungtot | 641 | 0 | Dead zone: no towers from any source |
| Malapaao | 536 | 0 | Dead zone: no towers from any source |
| Poblacion | 789 | 0 | Dead zone: no towers from any source |
| Quillat | 628 | 1 | Crowdsourced signal only (no registered tower) |