Tungawan comprises 25 barangays with an estimated population of 47,834. 17 of its barangays (68%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baluran | 1,746 | 1 | Crowdsourced signal only (no registered tower) |
| Batungan | 1,714 | 0 | Dead zone: no towers from any source |
| Cayamcam | 1,096 | 0 | Dead zone: no towers from any source |
| Datu Tumanggong | 3,255 | 0 | Dead zone: no towers from any source |
| Gaycon | 951 | 0 | Dead zone: no towers from any source |
| Langon | 2,138 | 1 | Crowdsourced signal only (no registered tower) |
| Libertad (Pob.) | 4,647 | 4 | Crowdsourced signal only (no registered tower) |
| Linguisan | 733 | 0 | Dead zone: no towers from any source |
| Little Margos | 697 | 0 | Dead zone: no towers from any source |
| Loboc | 3,176 | 0 | Dead zone: no towers from any source |
| Looc-labuan | 690 | 0 | Dead zone: no towers from any source |
| Lower Tungawan | 1,541 | 4 | Crowdsourced signal only (no registered tower) |
| Malungon | 2,776 | 0 | Dead zone: no towers from any source |
| Masao | 1,565 | 2 | Crowdsourced signal only (no registered tower) |
| San Isidro | 4,121 | 0 | Dead zone: no towers from any source |
| San Pedro | 2,244 | 5 | Crowdsourced signal only (no registered tower) |
| San Vicente | 887 | 0 | Dead zone: no towers from any source |
| Santo Niño | 1,065 | 0 | Dead zone: no towers from any source |
| Sisay | 2,842 | 0 | Dead zone: no towers from any source |
| Taglibas | 901 | 0 | Dead zone: no towers from any source |
| Tigbanuang | 1,447 | 3 | Crowdsourced signal only (no registered tower) |
| Tigbucay | 955 | 0 | Dead zone: no towers from any source |
| Tigpalay | 1,967 | 0 | Dead zone: no towers from any source |
| Timbabauan | 3,305 | 0 | Dead zone: no towers from any source |
| Upper Tungawan | 1,375 | 4 | Crowdsourced signal only (no registered tower) |