Maddela comprises 32 barangays with an estimated population of 46,851. 25 of its barangays (78%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abbag | 911 | 0 | Dead zone: no towers from any source |
| Balligui | 1,986 | 0 | Dead zone: no towers from any source |
| Buenavista | 1,094 | 0 | Dead zone: no towers from any source |
| Cabaruan | 646 | 2 | Crowdsourced signal only (no registered tower) |
| Cabua-an | 855 | 0 | Dead zone: no towers from any source |
| Cofcaville | 1,224 | 0 | Dead zone: no towers from any source |
| Diduyon | 1,244 | 0 | Dead zone: no towers from any source |
| Dipintin | 3,154 | 3 | Crowdsourced signal only (no registered tower) |
| Divisoria Norte | 311 | 0 | Dead zone: no towers from any source |
| Divisoria Sur (Bisangal) | 1,480 | 0 | Dead zone: no towers from any source |
| Dumabato Norte | 2,176 | 2 | Crowdsourced signal only (no registered tower) |
| Dumabato Sur | 966 | 3 | Crowdsourced signal only (no registered tower) |
| Jose Ancheta | 648 | 0 | Dead zone: no towers from any source |
| Lusod | 3,043 | 0 | Dead zone: no towers from any source |
| Manglad | 1,354 | 0 | Dead zone: no towers from any source |
| Pedlisan | 510 | 0 | Dead zone: no towers from any source |
| Poblacion Norte | 3,937 | 0 | Dead zone: no towers from any source |
| Poblacion Sur | 1,366 | 2 | Crowdsourced signal only (no registered tower) |
| San Bernabe | 813 | 0 | Dead zone: no towers from any source |
| San Dionisio I | 1,763 | 0 | Dead zone: no towers from any source |
| San Martin | 1,178 | 0 | Dead zone: no towers from any source |
| San Pedro | 2,118 | 0 | Dead zone: no towers from any source |
| San Salvador | 119 | 0 | Dead zone: no towers from any source |
| Santa Maria | 688 | 5 | Crowdsourced signal only (no registered tower) |
| Santo Niño | 2,516 | 0 | Dead zone: no towers from any source |
| Santo Tomas | 469 | 0 | Dead zone: no towers from any source |
| Villa Agullana | 762 | 0 | Dead zone: no towers from any source |
| Villa Gracia | 2,661 | 0 | Dead zone: no towers from any source |
| Villa Hermosa Norte | 1,740 | 0 | Dead zone: no towers from any source |
| Villa Hermosa Sur | 2,859 | 0 | Dead zone: no towers from any source |
| Villa Jose V Ylanan | 621 | 0 | Dead zone: no towers from any source |
| Ysmael | 1,639 | 1 | Crowdsourced signal only (no registered tower) |