City of Bislig comprises 24 barangays with an estimated population of 74,802. 13 of its barangays (54%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bucto | 563 | 3 | Crowdsourced signal only (no registered tower) |
| Burboanan | 1,113 | 0 | Dead zone: no towers from any source |
| Caguyao | 170 | 0 | Dead zone: no towers from any source |
| Coleto | 1,534 | 0 | Dead zone: no towers from any source |
| Comawas | 2,859 | 6 | Crowdsourced signal only (no registered tower) |
| Kahayag | 1,471 | 1 | Crowdsourced signal only (no registered tower) |
| Labisma | 2,965 | 0 | Dead zone: no towers from any source |
| Lawigan | 1,384 | 0 | Dead zone: no towers from any source |
| Maharlika | 3,122 | 3 | Crowdsourced signal only (no registered tower) |
| Mangagoy | 15,701 | 30 | Crowdsourced signal only (no registered tower) |
| Mone | 1,827 | 0 | Dead zone: no towers from any source |
| Pamanlinan | 1,501 | 0 | Dead zone: no towers from any source |
| Pamaypayan | 1,452 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion | 7,655 | 9 | Crowdsourced signal only (no registered tower) |
| San Antonio | 2,043 | 0 | Dead zone: no towers from any source |
| San Fernando | 2,185 | 0 | Dead zone: no towers from any source |
| San Isidro (Bagnan) | 1,709 | 0 | Dead zone: no towers from any source |
| San Jose | 2,599 | 1 | Crowdsourced signal only (no registered tower) |
| San Roque (Cadanglasan) | 3,964 | 3 | Crowdsourced signal only (no registered tower) |
| San Vicente | 1,988 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Cruz | 1,001 | 0 | Dead zone: no towers from any source |
| Sibaroy | 912 | 0 | Dead zone: no towers from any source |
| Tabon | 14,573 | 3 | Crowdsourced signal only (no registered tower) |
| Tumanan | 511 | 0 | Dead zone: no towers from any source |