Tarlac has 511 barangays across 18 municipalities. 200 barangays (39%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Anao | 18 | 5 (28%) |
| Bamban | 15 | 2 (13%) |
| Camiling | 61 | 36 (59%) |
| Capas | 20 | 4 (20%) |
| City of Tarlac (Capital) | 76 | 5 (7%) |
| Concepcion | 45 | 18 (40%) |
| Gerona | 44 | 24 (55%) |
| La Paz | 21 | 8 (38%) |
| Mayantoc | 24 | 22 (92%) |
| Moncada | 37 | 19 (51%) |
| Paniqui | 35 | 12 (34%) |
| Pura | 16 | 3 (19%) |
| Ramos | 9 | 2 (22%) |
| San Clemente | 12 | 10 (83%) |
| San Jose | 13 | 4 (31%) |
| San Manuel | 15 | 5 (33%) |
| Santa Ignacia | 24 | 12 (50%) |
| Victoria | 26 | 9 (35%) |