Cadiz City comprises 22 barangays with an estimated population of 147,047. 10 of its barangays (45%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Andres Bonifacio | 6,304 | 0 | Dead zone: no towers from any source |
| Banquerohan | 7,022 | 0 | Dead zone: no towers from any source |
| Barangay 1 Pob. (Zone 1) | 6,646 | 2 | Crowdsourced signal only (no registered tower) |
| Barangay 2 Pob. (Zone 2) | 11,163 | 4 | Crowdsourced signal only (no registered tower) |
| Barangay 3 Pob. (Zone 3) | 6,700 | 0 | Dead zone: no towers from any source |
| Barangay 4 Pob. (Zone 4) | 4,576 | 2 | Crowdsourced signal only (no registered tower) |
| Barangay 5 Pob. (Zone 5) | 567 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay 6 Pob. (Zone 6) | 4,275 | 2 | Crowdsourced signal only (no registered tower) |
| Burgos | 4,217 | 1 | Crowdsourced signal only (no registered tower) |
| Cabahug | 8,772 | 1 | Crowdsourced signal only (no registered tower) |
| Cadiz Viejo | 5,079 | 1 | Crowdsourced signal only (no registered tower) |
| Caduha-an | 10,217 | 11 | Crowdsourced signal only (no registered tower) |
| Celestino Villacin | 4,111 | 0 | Dead zone: no towers from any source |
| Daga | 14,988 | 1 | Crowdsourced signal only (no registered tower) |
| Jerusalem | 3,375 | 0 | Dead zone: no towers from any source |
| Luna | 10,514 | 7 | Crowdsourced signal only (no registered tower) |
| Mabini | 9,350 | 0 | Dead zone: no towers from any source |
| Magsaysay | 6,778 | 0 | Dead zone: no towers from any source |
| Sicaba | 3,811 | 0 | Dead zone: no towers from any source |
| Tiglawigan | 7,760 | 0 | Dead zone: no towers from any source |
| Tinampa-an | 8,827 | 3 | Crowdsourced signal only (no registered tower) |
| V. F. Gustilo | 1,995 | 0 | Dead zone: no towers from any source |