Iloilo has 1901 barangays across 44 municipalities. 1221 barangays (64%) are connectivity dead zones.
| Municipality | Barangays | Dead zones |
|---|---|---|
| Ajuy | 34 | 21 (62%) |
| Alimodian | 51 | 44 (86%) |
| Anilao | 21 | 13 (62%) |
| Badiangan | 31 | 27 (87%) |
| Balasan | 23 | 13 (57%) |
| Banate | 18 | 9 (50%) |
| Barotac Nuevo | 29 | 16 (55%) |
| Barotac Viejo | 26 | 16 (62%) |
| Batad | 24 | 19 (79%) |
| Bingawan | 14 | 13 (93%) |
| Cabatuan | 68 | 51 (75%) |
| Calinog | 59 | 49 (83%) |
| Carles | 33 | 21 (64%) |
| City of Passi | 51 | 37 (73%) |
| Concepcion | 25 | 24 (96%) |
| Dingle | 33 | 22 (67%) |
| Dueñas | 47 | 35 (74%) |
| Dumangas | 45 | 30 (67%) |
| Estancia | 25 | 17 (68%) |
| Guimbal | 33 | 14 (42%) |
| Igbaras | 46 | 43 (93%) |
| Iloilo City (Capital) | 180 | 10 (6%) |
| Janiuay | 60 | 49 (82%) |
| Lambunao | 73 | 61 (84%) |
| Leganes | 18 | 5 (28%) |
| Lemery | 31 | 23 (74%) |
| Leon | 85 | 73 (86%) |
| Maasin | 50 | 41 (82%) |
| Miagao | 119 | 96 (81%) |
| Mina | 22 | 18 (82%) |
| New Lucena | 21 | 13 (62%) |
| Oton | 37 | 12 (32%) |
| Pavia | 18 | 4 (22%) |
| Pototan | 50 | 20 (40%) |
| San Dionisio | 29 | 16 (55%) |
| San Enrique | 28 | 22 (79%) |
| San Joaquin | 85 | 69 (81%) |
| San Miguel | 24 | 11 (46%) |
| San Rafael | 9 | 5 (56%) |
| Santa Barbara | 60 | 28 (47%) |
| Sara | 42 | 26 (62%) |
| Tigbauan | 52 | 35 (67%) |
| Tubungan | 48 | 43 (90%) |
| Zarraga | 24 | 7 (29%) |