Tubao comprises 18 barangays with an estimated population of 29,474. 10 of its barangays (56%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Amallapay | 2,139 | 1 | Crowdsourced signal only (no registered tower) |
| Anduyan | 931 | 0 | Dead zone: no towers from any source |
| Caoigue | 1,614 | 0 | Dead zone: no towers from any source |
| Francia Sur | 2,776 | 5 | Crowdsourced signal only (no registered tower) |
| Francia West | 1,304 | 0 | Dead zone: no towers from any source |
| Garcia | 2,080 | 3 | Crowdsourced signal only (no registered tower) |
| Gonzales | 1,623 | 1 | Crowdsourced signal only (no registered tower) |
| Halog East | 1,008 | 0 | Dead zone: no towers from any source |
| Halog West | 2,355 | 0 | Dead zone: no towers from any source |
| Leones East | 963 | 1 | Crowdsourced signal only (no registered tower) |
| Leones West | 850 | 0 | Dead zone: no towers from any source |
| Linapew | 1,598 | 0 | Dead zone: no towers from any source |
| Lloren | 1,623 | 3 | Crowdsourced signal only (no registered tower) |
| Magsaysay | 3,339 | 4 | Crowdsourced signal only (no registered tower) |
| Pideg | 2,819 | 0 | Dead zone: no towers from any source |
| Poblacion | 189 | 2 | Crowdsourced signal only (no registered tower) |
| Rizal | 1,220 | 0 | Dead zone: no towers from any source |
| Santa Teresa | 1,043 | 0 | Dead zone: no towers from any source |