Santa Cruz comprises 55 barangays with an estimated population of 36,290. 54 of its barangays (98%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alobo | 552 | 0 | Dead zone: no towers from any source |
| Angas | 473 | 0 | Dead zone: no towers from any source |
| Aturan | 1,167 | 0 | Dead zone: no towers from any source |
| Bagong Silang Pob. (2nd Zone) | 590 | 0 | Dead zone: no towers from any source |
| Baguidbirin | 124 | 0 | Dead zone: no towers from any source |
| Baliis | 322 | 0 | Dead zone: no towers from any source |
| Balogo | 591 | 0 | Dead zone: no towers from any source |
| Banahaw Pob. (3rd Zone) | 1,159 | 0 | Dead zone: no towers from any source |
| Bangcuangan | 653 | 0 | Dead zone: no towers from any source |
| Banogbog | 377 | 0 | Dead zone: no towers from any source |
| Biga | 165 | 0 | Dead zone: no towers from any source |
| Botilao | 456 | 0 | Dead zone: no towers from any source |
| Buyabod | 1,891 | 0 | Dead zone: no towers from any source |
| Dating Bayan | 244 | 0 | Dead zone: no towers from any source |
| Devilla | 377 | 0 | Dead zone: no towers from any source |
| Dolores | 1,059 | 0 | Dead zone: no towers from any source |
| Haguimit | 211 | 0 | Dead zone: no towers from any source |
| Hupi | 1,131 | 0 | Dead zone: no towers from any source |
| Ipil | 1,599 | 0 | Dead zone: no towers from any source |
| Jolo | 306 | 0 | Dead zone: no towers from any source |
| Kaganhao | 627 | 0 | Dead zone: no towers from any source |
| Kalangkang | 261 | 0 | Dead zone: no towers from any source |
| Kamandugan | 408 | 0 | Dead zone: no towers from any source |
| Kasily | 669 | 0 | Dead zone: no towers from any source |
| Kilo-kilo | 459 | 0 | Dead zone: no towers from any source |
| Kinyaman | 484 | 0 | Dead zone: no towers from any source |
| Labo | 759 | 0 | Dead zone: no towers from any source |
| Lamesa | 641 | 0 | Dead zone: no towers from any source |
| Landy | 684 | 0 | Dead zone: no towers from any source |
| Lapu-lapu Pob. (5th Zone) | 1,982 | 0 | Dead zone: no towers from any source |
| Libjo | 236 | 0 | Dead zone: no towers from any source |
| Lipa | 920 | 0 | Dead zone: no towers from any source |
| Lusok | 332 | 0 | Dead zone: no towers from any source |
| Maharlika Pob. (1st Zone) | 357 | 1 | Crowdsourced signal only (no registered tower) |
| Makulapnit | 294 | 0 | Dead zone: no towers from any source |
| Maniwaya | 655 | 0 | Dead zone: no towers from any source |
| Manlibunan | 760 | 0 | Dead zone: no towers from any source |
| Masaguisi | 1,389 | 0 | Dead zone: no towers from any source |
| Masalukot | 368 | 0 | Dead zone: no towers from any source |
| Matalaba | 881 | 0 | Dead zone: no towers from any source |
| Mongpong | 545 | 0 | Dead zone: no towers from any source |
| Morales | 373 | 0 | Dead zone: no towers from any source |
| Napo | 1,299 | 0 | Dead zone: no towers from any source |
| Pag-Asa Pob. (4th Zone) | 838 | 0 | Dead zone: no towers from any source |
| Pantayin | 304 | 0 | Dead zone: no towers from any source |
| Polo | 396 | 0 | Dead zone: no towers from any source |
| Pulong-Parang | 333 | 0 | Dead zone: no towers from any source |
| Punong | 235 | 0 | Dead zone: no towers from any source |
| San Antonio | 748 | 0 | Dead zone: no towers from any source |
| San Isidro | 539 | 0 | Dead zone: no towers from any source |
| Tagum | 701 | 0 | Dead zone: no towers from any source |
| Tamayo | 539 | 0 | Dead zone: no towers from any source |
| Tambangan | 327 | 0 | Dead zone: no towers from any source |
| Tawiran | 1,537 | 0 | Dead zone: no towers from any source |
| Taytay | 963 | 0 | Dead zone: no towers from any source |