Nunungan comprises 25 barangays with an estimated population of 15,842. 25 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 |
|---|---|---|---|
| Abaga | 525 | 0 | Dead zone: no towers from any source |
| Bangco | 786 | 0 | Dead zone: no towers from any source |
| Cabasaran (Laya) | 693 | 0 | Dead zone: no towers from any source |
| Canibongan | 251 | 0 | Dead zone: no towers from any source |
| Dimarao | 1,064 | 0 | Dead zone: no towers from any source |
| Inayawan | 783 | 0 | Dead zone: no towers from any source |
| Kaludan | 399 | 0 | Dead zone: no towers from any source |
| Karcum | 97 | 0 | Dead zone: no towers from any source |
| Katubuan | 392 | 0 | Dead zone: no towers from any source |
| Liangan | 431 | 0 | Dead zone: no towers from any source |
| Lupitan | 1,161 | 0 | Dead zone: no towers from any source |
| Malaig | 483 | 0 | Dead zone: no towers from any source |
| Mangan | 1,028 | 0 | Dead zone: no towers from any source |
| Masibay | 805 | 0 | Dead zone: no towers from any source |
| Notongan | 208 | 0 | Dead zone: no towers from any source |
| Panganapan | 448 | 0 | Dead zone: no towers from any source |
| Pantar | 1,594 | 0 | Dead zone: no towers from any source |
| Paridi | 567 | 0 | Dead zone: no towers from any source |
| Petadun | 546 | 0 | Dead zone: no towers from any source |
| Poblacion (Nunungan Proper) | 1,107 | 0 | Dead zone: no towers from any source |
| Rarab | 397 | 0 | Dead zone: no towers from any source |
| Raraban | 1,009 | 0 | Dead zone: no towers from any source |
| Rebucon | 713 | 0 | Dead zone: no towers from any source |
| Songgod | 279 | 0 | Dead zone: no towers from any source |
| Taraka | 76 | 0 | Dead zone: no towers from any source |