Zaragoza comprises 19 barangays with an estimated population of 58,076. 8 of its barangays (42%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Batitang | 5,273 | 0 | Dead zone: no towers from any source |
| Carmen | 4,003 | 7 | Crowdsourced signal only (no registered tower) |
| Concepcion | 6,233 | 0 | Dead zone: no towers from any source |
| Del Pilar | 2,932 | 5 | Crowdsourced signal only (no registered tower) |
| General Luna | 6,499 | 4 | Crowdsourced signal only (no registered tower) |
| H. Romero | 2,860 | 9 | Crowdsourced signal only (no registered tower) |
| Macarse | 3,047 | 1 | Crowdsourced signal only (no registered tower) |
| Manaul | 2,244 | 0 | Dead zone: no towers from any source |
| Mayamot | 1,350 | 0 | Dead zone: no towers from any source |
| Pantoc | 1,796 | 3 | Crowdsourced signal only (no registered tower) |
| San Isidro | 1,851 | 4 | Crowdsourced signal only (no registered tower) |
| San Rafael | 395 | 0 | Dead zone: no towers from any source |
| San Vicente (Pob.) | 1,390 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Cruz | 1,974 | 8 | Crowdsourced signal only (no registered tower) |
| Santa Lucia Old | 3,514 | 0 | Dead zone: no towers from any source |
| Santa Lucia Young | 4,059 | 0 | Dead zone: no towers from any source |
| Santo Rosario Old | 2,857 | 1 | Crowdsourced signal only (no registered tower) |
| Santo Rosario Young | 5,217 | 13 | Crowdsourced signal only (no registered tower) |
| Valeriana | 582 | 0 | Dead zone: no towers from any source |