Madamba comprises 24 barangays with an estimated population of 12,267. 24 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Balagunun | 327 | 0 | Dead zone: no towers from any source |
| Balintad | 130 | 0 | Dead zone: no towers from any source |
| Bawang | 1,413 | 0 | Dead zone: no towers from any source |
| Biabe | 226 | 0 | Dead zone: no towers from any source |
| Bubong Uyaan | 347 | 0 | Dead zone: no towers from any source |
| Cabasaran | 220 | 0 | Dead zone: no towers from any source |
| Dibarusan | 172 | 0 | Dead zone: no towers from any source |
| Ilian | 4,497 | 0 | Dead zone: no towers from any source |
| Lakitan | 186 | 0 | Dead zone: no towers from any source |
| Liangan | 417 | 0 | Dead zone: no towers from any source |
| Linuk | 106 | 0 | Dead zone: no towers from any source |
| Lumbaca Ingud | 187 | 0 | Dead zone: no towers from any source |
| Madamba | 272 | 0 | Dead zone: no towers from any source |
| Pagayonan | 67 | 0 | Dead zone: no towers from any source |
| Palao | 168 | 0 | Dead zone: no towers from any source |
| Pangadapan | 53 | 0 | Dead zone: no towers from any source |
| Pantaon | 250 | 0 | Dead zone: no towers from any source |
| Pantar | 278 | 0 | Dead zone: no towers from any source |
| Punud | 211 | 0 | Dead zone: no towers from any source |
| Tambo | 698 | 0 | Dead zone: no towers from any source |
| Tubaran | 245 | 0 | Dead zone: no towers from any source |
| Tuca | 12 | 0 | Dead zone: no towers from any source |
| Tulay | 1,563 | 0 | Dead zone: no towers from any source |
| Uyaan Proper (Pob.) | 222 | 0 | Dead zone: no towers from any source |