City of San Juan comprises 21 barangays with an estimated population of 99,727. 0 of its barangays (0%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Addition Hills | 13,540 | 164 | Crowdsourced signal only (no registered tower) |
| Balong-Bato | 4,644 | 123 | Verified coverage (NTC + crowdsourced) |
| Batis | 8,360 | 149 | Verified coverage (NTC + crowdsourced) |
| Corazon de Jesus | 9,489 | 75 | Verified coverage (NTC + crowdsourced) |
| Ermitaño | 1,671 | 74 | Crowdsourced signal only (no registered tower) |
| Greenhills | 16,972 | 749 | Verified coverage (NTC + crowdsourced) |
| Halo-halo (St. Joseph) | 504 | 5 | Crowdsourced signal only (no registered tower) |
| Isabelita | 315 | 3 | Crowdsourced signal only (no registered tower) |
| Kabayanan | 3,797 | 66 | Crowdsourced signal only (no registered tower) |
| Little Baguio | 4,106 | 159 | Verified coverage (NTC + crowdsourced) |
| Maytunas | 1,528 | 61 | Verified coverage (NTC + crowdsourced) |
| Onse | 1,392 | 25 | Verified coverage (NTC + crowdsourced) |
| Pasadeña | 3,403 | 104 | Verified coverage (NTC + crowdsourced) |
| Pedro Cruz | 4,261 | 87 | Crowdsourced signal only (no registered tower) |
| Progreso | 680 | 25 | Crowdsourced signal only (no registered tower) |
| Rivera | 1,366 | 23 | Verified coverage (NTC + crowdsourced) |
| Salapan | 5,375 | 69 | Verified coverage (NTC + crowdsourced) |
| San Perfecto | 1,456 | 35 | Verified coverage (NTC + crowdsourced) |
| Santa Lucia | 3,264 | 92 | Verified coverage (NTC + crowdsourced) |
| Tibagan | 8,344 | 43 | Verified coverage (NTC + crowdsourced) |
| West Crame | 5,260 | 38 | Verified coverage (NTC + crowdsourced) |