Talisayan comprises 18 barangays with an estimated population of 30,132. 9 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 |
|---|---|---|---|
| Bugdang | 1,078 | 2 | Crowdsourced signal only (no registered tower) |
| Calamcam | 899 | 5 | Crowdsourced signal only (no registered tower) |
| Casibole | 1,261 | 0 | Dead zone: no towers from any source |
| Macopa | 683 | 0 | Dead zone: no towers from any source |
| Magkarila | 2,122 | 0 | Dead zone: no towers from any source |
| Mahayag | 780 | 0 | Dead zone: no towers from any source |
| Mandahilag | 540 | 0 | Dead zone: no towers from any source |
| Mintabon | 2,927 | 8 | Verified coverage (NTC + crowdsourced) |
| Pangpangon | 1,376 | 9 | Crowdsourced signal only (no registered tower) |
| Poblacion | 4,756 | 4 | Verified coverage (NTC + crowdsourced) |
| Pook | 778 | 0 | Dead zone: no towers from any source |
| Punta Santiago | 1,111 | 2 | Registered tower only (not crowd-verified) |
| Puting Balas | 1,832 | 0 | Dead zone: no towers from any source |
| San Jose | 4,019 | 5 | Crowdsourced signal only (no registered tower) |
| Santa Ines | 2,293 | 1 | Registered tower only (not crowd-verified) |
| Sibantang | 1,562 | 0 | Dead zone: no towers from any source |
| Sindangan | 617 | 0 | Dead zone: no towers from any source |
| Tagbocboc | 1,498 | 2 | Registered tower only (not crowd-verified) |