Loreto comprises 10 barangays with an estimated population of 7,178. 9 of its barangays (90%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Carmen (Pob.) | 863 | 0 | Dead zone: no towers from any source |
| Esperanza | 1,072 | 0 | Dead zone: no towers from any source |
| Ferdinand | 93 | 0 | Dead zone: no towers from any source |
| Helene | 155 | 0 | Dead zone: no towers from any source |
| Liberty | 300 | 0 | Dead zone: no towers from any source |
| Magsaysay | 316 | 0 | Dead zone: no towers from any source |
| Panamaon | 979 | 0 | Dead zone: no towers from any source |
| San Juan (Pob.) | 646 | 0 | Dead zone: no towers from any source |
| Santa Cruz (Pob.) | 747 | 10 | Crowdsourced signal only (no registered tower) |
| Santiago (Pob.) | 2,007 | 0 | Dead zone: no towers from any source |