Bulacan has 572 barangays across 24 municipalities. 114 barangays (20%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Angat | 16 | 1 (6%) |
| Balagtas (Bigaa) | 9 | 0 (0%) |
| Bocaue | 19 | 1 (5%) |
| Bulacan | 14 | 3 (21%) |
| Bustos | 14 | 1 (7%) |
| Calumpit | 29 | 6 (21%) |
| City of Baliwag | 27 | 5 (19%) |
| City of Malolos (Capital) | 51 | 8 (16%) |
| City of Meycauayan | 26 | 2 (8%) |
| City of San Jose del Monte | 62 | 4 (6%) |
| Doña Remedios Trinidad | 8 | 7 (88%) |
| Guiguinto | 14 | 0 (0%) |
| Hagonoy | 26 | 5 (19%) |
| Marilao | 16 | 1 (6%) |
| Norzagaray | 13 | 3 (23%) |
| Obando | 11 | 4 (36%) |
| Pandi | 22 | 6 (27%) |
| Paombong | 14 | 5 (36%) |
| Plaridel | 19 | 1 (5%) |
| Pulilan | 19 | 3 (16%) |
| San Ildefonso | 36 | 12 (33%) |
| San Miguel | 49 | 23 (47%) |
| San Rafael | 34 | 13 (38%) |
| Santa Maria | 24 | 0 (0%) |