Apayao has 133 barangays across 7 municipalities. 117 barangays (88%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Calanasan (Bayag) | 18 | 18 (100%) |
| Conner | 21 | 17 (81%) |
| Flora | 16 | 12 (75%) |
| Kabugao (Capital) | 21 | 20 (95%) |
| Luna | 22 | 16 (73%) |
| Pudtol | 22 | 22 (100%) |
| Santa Marcela | 13 | 12 (92%) |