Lal-lo comprises 35 barangays with an estimated population of 45,848. 19 of its barangays (54%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abagao | 808 | 0 | Dead zone: no towers from any source |
| Alaguia | 773 | 0 | Dead zone: no towers from any source |
| Bagumbayan | 1,239 | 2 | Crowdsourced signal only (no registered tower) |
| Bangag | 1,015 | 0 | Dead zone: no towers from any source |
| Bical | 332 | 0 | Dead zone: no towers from any source |
| Bicud | 761 | 1 | Crowdsourced signal only (no registered tower) |
| Binag | 957 | 0 | Dead zone: no towers from any source |
| Cabayabasan (Capacuan) | 1,398 | 1 | Crowdsourced signal only (no registered tower) |
| Cagoran | 708 | 0 | Dead zone: no towers from any source |
| Cambong | 1,024 | 0 | Dead zone: no towers from any source |
| Catayauan | 2,752 | 7 | Crowdsourced signal only (no registered tower) |
| Catugan | 1,397 | 0 | Dead zone: no towers from any source |
| Centro (Pob.) | 1,896 | 1 | Crowdsourced signal only (no registered tower) |
| Cullit | 420 | 0 | Dead zone: no towers from any source |
| Dagupan | 4,978 | 2 | Crowdsourced signal only (no registered tower) |
| Dalaya | 390 | 0 | Dead zone: no towers from any source |
| Fabrica | 304 | 0 | Dead zone: no towers from any source |
| Fusina | 795 | 0 | Dead zone: no towers from any source |
| Jurisdiction | 868 | 2 | Crowdsourced signal only (no registered tower) |
| Lalafugan | 869 | 1 | Crowdsourced signal only (no registered tower) |
| Logac | 2,786 | 1 | Crowdsourced signal only (no registered tower) |
| Magallungon (Sta. Teresa) | 574 | 0 | Dead zone: no towers from any source |
| Magapit | 1,943 | 4 | Crowdsourced signal only (no registered tower) |
| Malanao | 1,172 | 0 | Dead zone: no towers from any source |
| Maxingal | 3,384 | 1 | Crowdsourced signal only (no registered tower) |
| Naguilian | 1,896 | 0 | Dead zone: no towers from any source |
| Paranum | 789 | 0 | Dead zone: no towers from any source |
| Rosario | 648 | 0 | Dead zone: no towers from any source |
| San Antonio (Lafu) | 1,456 | 0 | Dead zone: no towers from any source |
| San Jose | 1,596 | 1 | Crowdsourced signal only (no registered tower) |
| San Juan | 835 | 0 | Dead zone: no towers from any source |
| San Lorenzo | 1,149 | 1 | Crowdsourced signal only (no registered tower) |
| San Mariano | 1,080 | 4 | Crowdsourced signal only (no registered tower) |
| Santa Maria | 1,820 | 6 | Crowdsourced signal only (no registered tower) |
| Tucalana | 1,036 | 1 | Crowdsourced signal only (no registered tower) |