Santa Ignacia comprises 24 barangays with an estimated population of 40,000. 12 of its barangays (50%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baldios | 1,736 | 4 | Crowdsourced signal only (no registered tower) |
| Botbotones | 1,382 | 0 | Dead zone: no towers from any source |
| Caanamongan | 2,156 | 0 | Dead zone: no towers from any source |
| Cabaruan | 1,239 | 0 | Dead zone: no towers from any source |
| Cabugbugan | 770 | 0 | Dead zone: no towers from any source |
| Caduldulaoan | 1,054 | 0 | Dead zone: no towers from any source |
| Calipayan | 1,303 | 0 | Dead zone: no towers from any source |
| Macaguing | 881 | 0 | Dead zone: no towers from any source |
| Nambalan | 1,733 | 1 | Crowdsourced signal only (no registered tower) |
| Padapada | 2,325 | 6 | Crowdsourced signal only (no registered tower) |
| Pilpila | 2,433 | 0 | Dead zone: no towers from any source |
| Pinpinas | 613 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion East | 2,133 | 4 | Crowdsourced signal only (no registered tower) |
| Poblacion West | 2,454 | 3 | Crowdsourced signal only (no registered tower) |
| Pugo-Cecilio | 1,596 | 6 | Crowdsourced signal only (no registered tower) |
| San Francisco | 1,971 | 4 | Crowdsourced signal only (no registered tower) |
| San Sotero | 528 | 0 | Dead zone: no towers from any source |
| San Vicente | 3,252 | 15 | Crowdsourced signal only (no registered tower) |
| Santa Ines Centro | 1,848 | 0 | Dead zone: no towers from any source |
| Santa Ines East | 1,937 | 5 | Crowdsourced signal only (no registered tower) |
| Santa Ines West | 1,767 | 1 | Crowdsourced signal only (no registered tower) |
| Taguiporo | 402 | 0 | Dead zone: no towers from any source |
| Timmaguab | 1,828 | 0 | Dead zone: no towers from any source |
| Vargas | 2,659 | 4 | Crowdsourced signal only (no registered tower) |