Bulalacao (San Pedro) comprises 15 barangays with an estimated population of 38,100. 13 of its barangays (87%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagong Sikat | 957 | 0 | Dead zone: no towers from any source |
| Balatasan | 2,580 | 0 | Dead zone: no towers from any source |
| Benli (Mangyan Settlement) | 2,899 | 0 | Dead zone: no towers from any source |
| Cabugao | 1,884 | 0 | Dead zone: no towers from any source |
| Cambunang (Pob.) | 2,731 | 0 | Dead zone: no towers from any source |
| Campaasan (Pob.) | 5,184 | 0 | Dead zone: no towers from any source |
| Maasin | 369 | 0 | Dead zone: no towers from any source |
| Maujao | 1,697 | 0 | Dead zone: no towers from any source |
| Milagrosa (Guiob) | 1,994 | 0 | Dead zone: no towers from any source |
| Nasukob (Pob.) | 3,554 | 0 | Dead zone: no towers from any source |
| Poblacion | 4,907 | 0 | Dead zone: no towers from any source |
| San Francisco (Alimawan) | 407 | 1 | Crowdsourced signal only (no registered tower) |
| San Isidro | 513 | 0 | Dead zone: no towers from any source |
| San Juan | 3,703 | 0 | Dead zone: no towers from any source |
| San Roque (Buyayao) | 4,721 | 1 | Crowdsourced signal only (no registered tower) |