Negros Oriental has 557 barangays across 25 municipalities. 310 barangays (56%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Amlan (Ayuquitan) | 8 | 2 (25%) |
| Ayungon | 24 | 22 (92%) |
| Bacong | 22 | 7 (32%) |
| Bais City | 35 | 19 (54%) |
| Basay | 10 | 5 (50%) |
| Bindoy (Payabon) | 22 | 21 (95%) |
| Canlaon City | 12 | 5 (42%) |
| City of Bayawan (Tulong) | 28 | 20 (71%) |
| City of Guihulngan | 33 | 29 (88%) |
| City of Tanjay | 24 | 4 (17%) |
| Dauin | 23 | 6 (26%) |
| Dumaguete City (Capital) | 30 | 0 (0%) |
| Jimalalud | 28 | 23 (82%) |
| La Libertad | 29 | 27 (93%) |
| Mabinay | 32 | 16 (50%) |
| Manjuyod | 27 | 23 (85%) |
| Pamplona | 16 | 6 (38%) |
| San Jose | 14 | 7 (50%) |
| Santa Catalina | 22 | 11 (50%) |
| Siaton | 26 | 10 (38%) |
| Sibulan | 15 | 3 (20%) |
| Tayasan | 28 | 28 (100%) |
| Valencia (Luzurriaga) | 24 | 1 (4%) |
| Vallehermoso | 15 | 11 (73%) |
| Zamboanguita | 10 | 4 (40%) |