Lupi comprises 38 barangays with an estimated population of 36,679. 31 of its barangays (82%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alleomar | 314 | 0 | Dead zone: no towers from any source |
| Bagangan Sr. | 602 | 0 | Dead zone: no towers from any source |
| Bagong Sikat | 234 | 0 | Dead zone: no towers from any source |
| Bangon | 977 | 0 | Dead zone: no towers from any source |
| Barrera Jr. | 114 | 0 | Dead zone: no towers from any source |
| Barrera Sr. | 286 | 0 | Dead zone: no towers from any source |
| Bel-Cruz | 635 | 7 | Crowdsourced signal only (no registered tower) |
| Belwang | 798 | 0 | Dead zone: no towers from any source |
| Buenasuerte | 864 | 0 | Dead zone: no towers from any source |
| Bulawan Jr. | 1,077 | 0 | Dead zone: no towers from any source |
| Bulawan Sr. | 4,165 | 10 | Crowdsourced signal only (no registered tower) |
| Cabutagan | 717 | 7 | Crowdsourced signal only (no registered tower) |
| Casay | 1,602 | 0 | Dead zone: no towers from any source |
| Colacling (Del Rosario) | 2,032 | 4 | Crowdsourced signal only (no registered tower) |
| Cristo Rey | 195 | 0 | Dead zone: no towers from any source |
| Del Carmen | 1,192 | 0 | Dead zone: no towers from any source |
| Haguimit | 31 | 0 | Dead zone: no towers from any source |
| Haluban (Pigbasagan) | 579 | 0 | Dead zone: no towers from any source |
| Kaibigan | 59 | 0 | Dead zone: no towers from any source |
| La Purisima | 1,799 | 0 | Dead zone: no towers from any source |
| Lourdes | 891 | 0 | Dead zone: no towers from any source |
| Mangcawayan | 851 | 0 | Dead zone: no towers from any source |
| Napolidan | 2,468 | 0 | Dead zone: no towers from any source |
| Poblacion | 2,794 | 1 | Crowdsourced signal only (no registered tower) |
| Polantuna | 487 | 0 | Dead zone: no towers from any source |
| Sagrada | 575 | 0 | Dead zone: no towers from any source |
| Salvacion | 284 | 0 | Dead zone: no towers from any source |
| San Isidro | 588 | 0 | Dead zone: no towers from any source |
| San Jose | 592 | 1 | Crowdsourced signal only (no registered tower) |
| San Pedro | 1,217 | 0 | Dead zone: no towers from any source |
| San Rafael Norte | 606 | 0 | Dead zone: no towers from any source |
| San Rafael Sur | 1,046 | 0 | Dead zone: no towers from any source |
| San Ramon | 471 | 0 | Dead zone: no towers from any source |
| San Vicente | 802 | 0 | Dead zone: no towers from any source |
| Sooc | 2,975 | 1 | Crowdsourced signal only (no registered tower) |
| Tanawan | 324 | 0 | Dead zone: no towers from any source |
| Tapi (Lupi Nuevo) | 1,195 | 0 | Dead zone: no towers from any source |
| Tible | 241 | 0 | Dead zone: no towers from any source |