Calatrava comprises 7 barangays with an estimated population of 7,483. 7 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 |
|---|---|---|---|
| Balogo | 1,363 | 0 | Dead zone: no towers from any source |
| Linao | 837 | 0 | Dead zone: no towers from any source |
| Pagsangahan | 898 | 0 | Dead zone: no towers from any source |
| Pangulo | 1,644 | 0 | Dead zone: no towers from any source |
| Poblacion | 764 | 0 | Dead zone: no towers from any source |
| San Roque | 1,303 | 0 | Dead zone: no towers from any source |
| Talisay | 674 | 0 | Dead zone: no towers from any source |