Maitum comprises 19 barangays with an estimated population of 54,151. 14 of its barangays (74%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bati-an | 2,942 | 0 | Dead zone: no towers from any source |
| Kalaneg | 1,603 | 0 | Dead zone: no towers from any source |
| Kalaong | 1,637 | 0 | Dead zone: no towers from any source |
| Kiambing | 1,993 | 0 | Dead zone: no towers from any source |
| Kiayap | 883 | 0 | Dead zone: no towers from any source |
| Mabay | 3,464 | 2 | Crowdsourced signal only (no registered tower) |
| Maguling | 1,817 | 1 | Crowdsourced signal only (no registered tower) |
| Malalag (Pob.) | 6,481 | 6 | Crowdsourced signal only (no registered tower) |
| Mindupok | 4,748 | 0 | Dead zone: no towers from any source |
| New La Union | 2,947 | 0 | Dead zone: no towers from any source |
| Old Poblacion (Maitum) | 4,784 | 2 | Crowdsourced signal only (no registered tower) |
| Pangi (Linao) | 1,931 | 0 | Dead zone: no towers from any source |
| Pinol | 2,378 | 0 | Dead zone: no towers from any source |
| Sison (Edenton) | 3,191 | 3 | Crowdsourced signal only (no registered tower) |
| Ticulab | 2,387 | 0 | Dead zone: no towers from any source |
| Tuanadatu | 3,772 | 0 | Dead zone: no towers from any source |
| Upo (Lanao) | 3,125 | 0 | Dead zone: no towers from any source |
| Wali (Kambuhan) | 1,075 | 0 | Dead zone: no towers from any source |
| Zion | 2,993 | 0 | Dead zone: no towers from any source |