Zamboanguita comprises 10 barangays with an estimated population of 21,701. 4 of its barangays (40%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Basac | 1,579 | 2 | Crowdsourced signal only (no registered tower) |
| Calango | 1,643 | 0 | Dead zone: no towers from any source |
| Lotuban | 318 | 2 | Crowdsourced signal only (no registered tower) |
| Malongcay Diot | 441 | 0 | Dead zone: no towers from any source |
| Maluay | 1,460 | 5 | Crowdsourced signal only (no registered tower) |
| Mayabon | 6,413 | 8 | Crowdsourced signal only (no registered tower) |
| Nabago | 748 | 1 | Crowdsourced signal only (no registered tower) |
| Najandig | 1,671 | 0 | Dead zone: no towers from any source |
| Nasig-id | 1,063 | 0 | Dead zone: no towers from any source |
| Poblacion | 6,365 | 12 | Crowdsourced signal only (no registered tower) |