Ibajay comprises 35 barangays with an estimated population of 51,440. 23 of its barangays (66%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agbago | 2,175 | 13 | Crowdsourced signal only (no registered tower) |
| Agdugayan | 1,654 | 0 | Dead zone: no towers from any source |
| Antipolo | 746 | 0 | Dead zone: no towers from any source |
| Aparicio | 814 | 0 | Dead zone: no towers from any source |
| Aquino | 3,499 | 15 | Crowdsourced signal only (no registered tower) |
| Aslum | 629 | 0 | Dead zone: no towers from any source |
| Bagacay | 1,079 | 0 | Dead zone: no towers from any source |
| Batuan | 1,912 | 0 | Dead zone: no towers from any source |
| Buenavista | 660 | 3 | Crowdsourced signal only (no registered tower) |
| Bugtongbato | 1,319 | 0 | Dead zone: no towers from any source |
| Cabugao | 211 | 0 | Dead zone: no towers from any source |
| Capilijan | 988 | 0 | Dead zone: no towers from any source |
| Colongcolong | 755 | 7 | Crowdsourced signal only (no registered tower) |
| Laguinbanua | 2,992 | 3 | Crowdsourced signal only (no registered tower) |
| Mabusao | 594 | 0 | Dead zone: no towers from any source |
| Malindog | 154 | 0 | Dead zone: no towers from any source |
| Maloco | 2,762 | 0 | Dead zone: no towers from any source |
| Mina-a | 1,005 | 0 | Dead zone: no towers from any source |
| Monlaque | 1,060 | 0 | Dead zone: no towers from any source |
| Naile | 2,850 | 0 | Dead zone: no towers from any source |
| Naisud | 3,238 | 1 | Crowdsourced signal only (no registered tower) |
| Naligusan | 976 | 0 | Dead zone: no towers from any source |
| Ondoy | 2,312 | 2 | Crowdsourced signal only (no registered tower) |
| Poblacion | 3,243 | 0 | Dead zone: no towers from any source |
| Polo | 1,275 | 7 | Crowdsourced signal only (no registered tower) |
| Regador | 2,225 | 12 | Crowdsourced signal only (no registered tower) |
| Rivera | 351 | 0 | Dead zone: no towers from any source |
| Rizal | 1,737 | 0 | Dead zone: no towers from any source |
| San Isidro | 1,455 | 1 | Crowdsourced signal only (no registered tower) |
| San Jose | 1,836 | 0 | Dead zone: no towers from any source |
| Santa Cruz | 1,284 | 0 | Dead zone: no towers from any source |
| Tagbaya | 1,783 | 5 | Crowdsourced signal only (no registered tower) |
| Tul-ang | 705 | 1 | Crowdsourced signal only (no registered tower) |
| Unat | 883 | 0 | Dead zone: no towers from any source |
| Yawan | 279 | 0 | Dead zone: no towers from any source |