Samboan comprises 15 barangays with an estimated population of 17,833. 9 of its barangays (60%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Basak | 1,378 | 0 | Dead zone: no towers from any source |
| Bonbon | 530 | 0 | Dead zone: no towers from any source |
| Bulangsuran | 1,905 | 0 | Dead zone: no towers from any source |
| Calatagan | 1,074 | 2 | Crowdsourced signal only (no registered tower) |
| Cambigong | 126 | 0 | Dead zone: no towers from any source |
| Camburoy | 1,104 | 0 | Dead zone: no towers from any source |
| Canorong | 821 | 6 | Crowdsourced signal only (no registered tower) |
| Colase | 988 | 0 | Dead zone: no towers from any source |
| Dalahikan | 1,007 | 1 | Crowdsourced signal only (no registered tower) |
| Jumangpas | 1,282 | 0 | Dead zone: no towers from any source |
| Monteverde | 1,294 | 0 | Dead zone: no towers from any source |
| Poblacion | 3,369 | 7 | Crowdsourced signal only (no registered tower) |
| San Sebastian | 1,817 | 0 | Dead zone: no towers from any source |
| Suba | 507 | 3 | Crowdsourced signal only (no registered tower) |
| Tangbo | 631 | 3 | Crowdsourced signal only (no registered tower) |