Santo Niño comprises 13 barangays with an estimated population of 9,836. 13 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balatguti | 453 | 0 | Dead zone: no towers from any source |
| Baras | 658 | 0 | Dead zone: no towers from any source |
| Basud (Pob.) | 985 | 0 | Dead zone: no towers from any source |
| Buenavista | 1,308 | 0 | Dead zone: no towers from any source |
| Cabunga-an | 779 | 0 | Dead zone: no towers from any source |
| Corocawayan | 841 | 0 | Dead zone: no towers from any source |
| Ilijan | 673 | 0 | Dead zone: no towers from any source |
| Ilo (Pob.) | 1,017 | 0 | Dead zone: no towers from any source |
| Lobelobe | 360 | 0 | Dead zone: no towers from any source |
| Pinanangnan | 251 | 0 | Dead zone: no towers from any source |
| Sevilla | 710 | 0 | Dead zone: no towers from any source |
| Takut | 1,006 | 0 | Dead zone: no towers from any source |
| Villahermosa | 795 | 0 | Dead zone: no towers from any source |