Surallah comprises 17 barangays with an estimated population of 94,437. 10 of its barangays (59%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Buenavista | 1,985 | 0 | Dead zone: no towers from any source |
| Canahay (Godwino) | 1,890 | 0 | Dead zone: no towers from any source |
| Centrala | 15,393 | 12 | Crowdsourced signal only (no registered tower) |
| Colongulo | 6,213 | 3 | Crowdsourced signal only (no registered tower) |
| Dajay | 11,952 | 6 | Crowdsourced signal only (no registered tower) |
| Duengas | 849 | 0 | Dead zone: no towers from any source |
| Lambontong | 4,938 | 0 | Dead zone: no towers from any source |
| Lamian | 5,590 | 0 | Dead zone: no towers from any source |
| Lamsugod | 3,036 | 7 | Crowdsourced signal only (no registered tower) |
| Libertad (Pob.) | 18,243 | 46 | Crowdsourced signal only (no registered tower) |
| Little Baguio | 1,450 | 0 | Dead zone: no towers from any source |
| Moloy | 3,602 | 0 | Dead zone: no towers from any source |
| Naci (Doce) | 4,311 | 0 | Dead zone: no towers from any source |
| Talahik | 3,209 | 0 | Dead zone: no towers from any source |
| Tubiala | 6,537 | 1 | Crowdsourced signal only (no registered tower) |
| Upper Sepaka | 3,914 | 0 | Dead zone: no towers from any source |
| Veterans | 1,325 | 3 | Crowdsourced signal only (no registered tower) |