Los Baños comprises 14 barangays with an estimated population of 110,873. 2 of its barangays (14%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Anos | 5,195 | 34 | Crowdsourced signal only (no registered tower) |
| Bagong Silang | 1,357 | 0 | Dead zone: no towers from any source |
| Bambang | 6,235 | 15 | Crowdsourced signal only (no registered tower) |
| Batong Malake | 12,543 | 84 | Crowdsourced signal only (no registered tower) |
| Baybayin (Pob.) | 3,651 | 2 | Crowdsourced signal only (no registered tower) |
| Bayog | 13,294 | 0 | Dead zone: no towers from any source |
| Lalakay | 4,439 | 49 | Crowdsourced signal only (no registered tower) |
| Maahas | 9,541 | 37 | Crowdsourced signal only (no registered tower) |
| Malinta | 1,964 | 1 | Crowdsourced signal only (no registered tower) |
| Mayondon | 17,282 | 4 | Crowdsourced signal only (no registered tower) |
| Putho Tuntungin | 5,943 | 30 | Crowdsourced signal only (no registered tower) |
| San Antonio | 15,215 | 47 | Crowdsourced signal only (no registered tower) |
| Tadlak | 1,768 | 9 | Crowdsourced signal only (no registered tower) |
| Timugan (Pob.) | 12,446 | 25 | Crowdsourced signal only (no registered tower) |