Bangar comprises 33 barangays with an estimated population of 33,567. 21 of its barangays (64%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Agdeppa | 1,966 | 0 | Dead zone: no towers from any source |
| Alzate | 79 | 1 | Crowdsourced signal only (no registered tower) |
| Bangaoilan East | 1,059 | 5 | Crowdsourced signal only (no registered tower) |
| Bangaoilan West | 876 | 2 | Crowdsourced signal only (no registered tower) |
| Barraca | 121 | 0 | Dead zone: no towers from any source |
| Cadapli | 1,504 | 0 | Dead zone: no towers from any source |
| Caggao | 1,932 | 0 | Dead zone: no towers from any source |
| Central East No. 1 (Pob.) | 1,198 | 2 | Crowdsourced signal only (no registered tower) |
| Central East No. 2 (Pob.) | 897 | 2 | Crowdsourced signal only (no registered tower) |
| Central West No. 1 (Pob.) | 44 | 0 | Dead zone: no towers from any source |
| Central West No. 2 (Pob.) | 218 | 0 | Dead zone: no towers from any source |
| Central West No. 3 (Pob.) | 81 | 0 | Dead zone: no towers from any source |
| Consuegra | 814 | 0 | Dead zone: no towers from any source |
| General Prim East | 1,194 | 3 | Crowdsourced signal only (no registered tower) |
| General Prim West | 1,424 | 6 | Crowdsourced signal only (no registered tower) |
| General Terrero | 467 | 1 | Crowdsourced signal only (no registered tower) |
| Luzong Norte | 1,444 | 0 | Dead zone: no towers from any source |
| Luzong Sur | 1,527 | 0 | Dead zone: no towers from any source |
| Maria Cristina East | 706 | 2 | Crowdsourced signal only (no registered tower) |
| Maria Cristina West | 341 | 0 | Dead zone: no towers from any source |
| Mindoro | 833 | 0 | Dead zone: no towers from any source |
| Nagsabaran | 1,578 | 0 | Dead zone: no towers from any source |
| Paratong No. 3 | 647 | 0 | Dead zone: no towers from any source |
| Paratong No. 4 | 976 | 0 | Dead zone: no towers from any source |
| Paratong Norte | 1,303 | 0 | Dead zone: no towers from any source |
| Quintarong | 86 | 0 | Dead zone: no towers from any source |
| Reyna Regente | 2,029 | 0 | Dead zone: no towers from any source |
| Rissing | 2,568 | 10 | Crowdsourced signal only (no registered tower) |
| San Blas | 2,316 | 8 | Crowdsourced signal only (no registered tower) |
| San Cristobal | 375 | 0 | Dead zone: no towers from any source |
| Sinapangan Norte | 488 | 0 | Dead zone: no towers from any source |
| Sinapangan Sur | 598 | 0 | Dead zone: no towers from any source |
| Ubbog | 1,878 | 1 | Crowdsourced signal only (no registered tower) |