San Jose comprises 14 barangays with an estimated population of 24,542. 7 of its barangays (50%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Basak | 1,198 | 0 | Dead zone: no towers from any source |
| Basiao | 531 | 0 | Dead zone: no towers from any source |
| Cambaloctot | 577 | 0 | Dead zone: no towers from any source |
| Cancawas | 3,367 | 0 | Dead zone: no towers from any source |
| Janayjanay | 649 | 0 | Dead zone: no towers from any source |
| Jilocon | 1,611 | 4 | Crowdsourced signal only (no registered tower) |
| Naiba | 478 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion | 1,098 | 5 | Crowdsourced signal only (no registered tower) |
| San Roque | 1,536 | 0 | Dead zone: no towers from any source |
| Santo Niño | 2,974 | 14 | Crowdsourced signal only (no registered tower) |
| Señora Ascion (Calo) | 1,846 | 4 | Crowdsourced signal only (no registered tower) |
| Siapo | 4,361 | 1 | Crowdsourced signal only (no registered tower) |
| Tampi | 1,915 | 0 | Dead zone: no towers from any source |
| Tapon Norte | 2,401 | 3 | Crowdsourced signal only (no registered tower) |