Matalom comprises 30 barangays with an estimated population of 32,930. 25 of its barangays (83%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agbanga | 601 | 0 | Dead zone: no towers from any source |
| Altavista | 496 | 0 | Dead zone: no towers from any source |
| Bagong Lipunan | 672 | 0 | Dead zone: no towers from any source |
| Cahagnaan | 2,378 | 0 | Dead zone: no towers from any source |
| Calumpang | 1,863 | 0 | Dead zone: no towers from any source |
| Caningag | 826 | 0 | Dead zone: no towers from any source |
| Caridad Norte | 412 | 0 | Dead zone: no towers from any source |
| Caridad Sur | 710 | 1 | Crowdsourced signal only (no registered tower) |
| Elevado | 1,888 | 0 | Dead zone: no towers from any source |
| Esperanza | 1,222 | 0 | Dead zone: no towers from any source |
| Hitoog | 868 | 0 | Dead zone: no towers from any source |
| Itum | 514 | 4 | Crowdsourced signal only (no registered tower) |
| Lowan | 2,284 | 0 | Dead zone: no towers from any source |
| Monte Alegre | 504 | 0 | Dead zone: no towers from any source |
| President Garcia | 2,569 | 0 | Dead zone: no towers from any source |
| Punong | 1,097 | 0 | Dead zone: no towers from any source |
| San Isidro (Pob.) | 288 | 1 | Crowdsourced signal only (no registered tower) |
| San Juan | 899 | 0 | Dead zone: no towers from any source |
| San Pedro (Pob.) | 984 | 1 | Crowdsourced signal only (no registered tower) |
| San Salvador | 1,600 | 0 | Dead zone: no towers from any source |
| San Vicente | 1,307 | 0 | Dead zone: no towers from any source |
| Santa Fe | 1,620 | 0 | Dead zone: no towers from any source |
| Santa Paz | 2,014 | 0 | Dead zone: no towers from any source |
| Santo Niño (Pob.) | 308 | 0 | Dead zone: no towers from any source |
| Tag-os | 1,006 | 0 | Dead zone: no towers from any source |
| Taglibas Imelda | 411 | 0 | Dead zone: no towers from any source |
| Templanza | 1,154 | 0 | Dead zone: no towers from any source |
| Tigbao | 313 | 0 | Dead zone: no towers from any source |
| Waterloo | 80 | 0 | Dead zone: no towers from any source |
| Zaragoza | 2,042 | 1 | Crowdsourced signal only (no registered tower) |