Lupao comprises 24 barangays with an estimated population of 54,562. 11 of its barangays (46%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agupalo Este | 585 | 1 | Crowdsourced signal only (no registered tower) |
| Agupalo Weste | 1,731 | 0 | Dead zone: no towers from any source |
| Alalay Chica | 1,017 | 0 | Dead zone: no towers from any source |
| Alalay Grande | 2,413 | 0 | Dead zone: no towers from any source |
| Bagong Flores | 4,514 | 1 | Crowdsourced signal only (no registered tower) |
| Balbalungao | 4,528 | 7 | Crowdsourced signal only (no registered tower) |
| Burgos | 1,063 | 0 | Dead zone: no towers from any source |
| Cordero | 678 | 2 | Crowdsourced signal only (no registered tower) |
| J. U. Tienzo (Arimal) | 617 | 1 | Crowdsourced signal only (no registered tower) |
| Mapangpang | 921 | 0 | Dead zone: no towers from any source |
| Namulandayan | 4,237 | 1 | Crowdsourced signal only (no registered tower) |
| Parista | 3,647 | 4 | Crowdsourced signal only (no registered tower) |
| Poblacion East | 2,192 | 3 | Crowdsourced signal only (no registered tower) |
| Poblacion North | 1,806 | 5 | Crowdsourced signal only (no registered tower) |
| Poblacion South | 814 | 0 | Dead zone: no towers from any source |
| Poblacion West | 1,021 | 1 | Crowdsourced signal only (no registered tower) |
| Salvacion I | 1,532 | 0 | Dead zone: no towers from any source |
| Salvacion II | 2,323 | 0 | Dead zone: no towers from any source |
| San Antonio Este | 2,118 | 0 | Dead zone: no towers from any source |
| San Antonio Weste | 3,571 | 0 | Dead zone: no towers from any source |
| San Isidro | 6,220 | 8 | Crowdsourced signal only (no registered tower) |
| San Pedro | 2,484 | 2 | Crowdsourced signal only (no registered tower) |
| San Roque | 4,119 | 0 | Dead zone: no towers from any source |
| Santo Domingo | 411 | 1 | Crowdsourced signal only (no registered tower) |