Mutia comprises 16 barangays with an estimated population of 11,611. 16 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alvenda | 957 | 0 | Dead zone: no towers from any source |
| Buenasuerte | 1,219 | 0 | Dead zone: no towers from any source |
| Diland | 209 | 0 | Dead zone: no towers from any source |
| Diolen | 286 | 0 | Dead zone: no towers from any source |
| Head Tipan | 451 | 0 | Dead zone: no towers from any source |
| New Casul | 481 | 0 | Dead zone: no towers from any source |
| New Siquijor | 128 | 0 | Dead zone: no towers from any source |
| Newland | 881 | 0 | Dead zone: no towers from any source |
| Paso Rio | 578 | 0 | Dead zone: no towers from any source |
| Poblacion | 2,483 | 0 | Dead zone: no towers from any source |
| San Miguel | 302 | 0 | Dead zone: no towers from any source |
| Santo Tomas | 798 | 0 | Dead zone: no towers from any source |
| Tinglan | 690 | 0 | Dead zone: no towers from any source |
| Totongon | 495 | 0 | Dead zone: no towers from any source |
| Tubac | 582 | 0 | Dead zone: no towers from any source |
| Unidos | 1,071 | 0 | Dead zone: no towers from any source |