Malvar comprises 15 barangays with an estimated population of 60,483. 4 of its barangays (27%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagong Pook | 1,467 | 0 | Dead zone: no towers from any source |
| Bilucao (San Isidro Western) | 2,292 | 0 | Dead zone: no towers from any source |
| Bulihan | 2,287 | 5 | Crowdsourced signal only (no registered tower) |
| Luta del Norte | 3,384 | 10 | Crowdsourced signal only (no registered tower) |
| Luta del Sur | 4,162 | 13 | Crowdsourced signal only (no registered tower) |
| Poblacion | 12,493 | 37 | Crowdsourced signal only (no registered tower) |
| San Andres | 4,100 | 26 | Crowdsourced signal only (no registered tower) |
| San Fernando | 4,833 | 38 | Crowdsourced signal only (no registered tower) |
| San Gregorio | 1,473 | 0 | Dead zone: no towers from any source |
| San Isidro East | 1,381 | 0 | Dead zone: no towers from any source |
| San Juan | 3,637 | 5 | Crowdsourced signal only (no registered tower) |
| San Pedro I (Eastern) | 2,117 | 12 | Crowdsourced signal only (no registered tower) |
| San Pedro II (Western) | 2,096 | 3 | Crowdsourced signal only (no registered tower) |
| San Pioquinto | 5,685 | 4 | Crowdsourced signal only (no registered tower) |
| Santiago | 9,076 | 21 | Crowdsourced signal only (no registered tower) |