Camarines Sur has 1063 barangays across 37 municipalities. 690 barangays (65%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Baao | 30 | 15 (50%) |
| Balatan | 17 | 13 (76%) |
| Bato | 33 | 17 (52%) |
| Bombon | 8 | 4 (50%) |
| Buhi | 38 | 29 (76%) |
| Bula | 33 | 24 (73%) |
| Cabusao | 9 | 6 (67%) |
| Calabanga | 48 | 39 (81%) |
| Camaligan | 13 | 11 (85%) |
| Canaman | 24 | 17 (71%) |
| Caramoan | 49 | 44 (90%) |
| Del Gallego | 32 | 20 (62%) |
| Gainza | 8 | 6 (75%) |
| Garchitorena | 23 | 23 (100%) |
| Goa | 34 | 23 (68%) |
| Iriga City | 36 | 11 (31%) |
| Lagonoy | 38 | 33 (87%) |
| Libmanan | 75 | 49 (65%) |
| Lupi | 38 | 31 (82%) |
| Magarao | 15 | 4 (27%) |
| Milaor | 20 | 6 (30%) |
| Minalabac | 25 | 21 (84%) |
| Nabua | 42 | 16 (38%) |
| Naga City | 27 | 0 (0%) |
| Ocampo | 25 | 18 (72%) |
| Pamplona | 17 | 9 (53%) |
| Pasacao | 19 | 15 (79%) |
| Pili (Capital) | 26 | 7 (27%) |
| Presentacion (Parubcan) | 18 | 18 (100%) |
| Ragay | 38 | 22 (58%) |
| Sagñay | 19 | 12 (63%) |
| San Fernando | 22 | 14 (64%) |
| San Jose | 29 | 13 (45%) |
| Sipocot | 46 | 32 (70%) |
| Siruma | 22 | 20 (91%) |
| Tigaon | 23 | 12 (52%) |
| Tinambac | 44 | 36 (82%) |