Bilar comprises 19 barangays with an estimated population of 20,448. 7 of its barangays (37%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bonifacio | 265 | 1 | Crowdsourced signal only (no registered tower) |
| Bugang Norte | 256 | 0 | Dead zone: no towers from any source |
| Bugang Sur | 448 | 4 | Crowdsourced signal only (no registered tower) |
| Cabacnitan (Magsaysay) | 329 | 4 | Crowdsourced signal only (no registered tower) |
| Cambigsi | 1,061 | 0 | Dead zone: no towers from any source |
| Campagao | 1,295 | 2 | Crowdsourced signal only (no registered tower) |
| Cansumbol | 1,321 | 4 | Crowdsourced signal only (no registered tower) |
| Dagohoy | 867 | 0 | Dead zone: no towers from any source |
| Owac | 1,619 | 0 | Dead zone: no towers from any source |
| Poblacion | 1,654 | 1 | Crowdsourced signal only (no registered tower) |
| Quezon | 760 | 1 | Crowdsourced signal only (no registered tower) |
| Riverside | 749 | 1 | Crowdsourced signal only (no registered tower) |
| Rizal | 1,243 | 0 | Dead zone: no towers from any source |
| Roxas | 1,252 | 0 | Dead zone: no towers from any source |
| Subayon | 3,360 | 2 | Crowdsourced signal only (no registered tower) |
| Villa Aurora | 349 | 8 | Crowdsourced signal only (no registered tower) |
| Villa Suerte | 559 | 0 | Dead zone: no towers from any source |
| Yanaya | 1,154 | 3 | Crowdsourced signal only (no registered tower) |
| Zamora | 1,907 | 8 | Crowdsourced signal only (no registered tower) |