City of Santiago comprises 37 barangays with an estimated population of 149,328. 8 of its barangays (22%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abra | 641 | 12 | Crowdsourced signal only (no registered tower) |
| Ambalatungan | 1,518 | 0 | Dead zone: no towers from any source |
| Balintocatoc | 3,751 | 2 | Crowdsourced signal only (no registered tower) |
| Baluarte | 7,221 | 10 | Crowdsourced signal only (no registered tower) |
| Bannawag Norte | 1,189 | 2 | Crowdsourced signal only (no registered tower) |
| Batal | 11,931 | 27 | Crowdsourced signal only (no registered tower) |
| Buenavista | 4,674 | 1 | Crowdsourced signal only (no registered tower) |
| Cabulay | 4,463 | 1 | Crowdsourced signal only (no registered tower) |
| Calao East (Pob.) | 2,365 | 5 | Crowdsourced signal only (no registered tower) |
| Calao West (Pob.) | 1,387 | 3 | Crowdsourced signal only (no registered tower) |
| Calaocan | 11,855 | 2 | Crowdsourced signal only (no registered tower) |
| Centro East (Pob.) | 1,688 | 16 | Crowdsourced signal only (no registered tower) |
| Centro West (Pob.) | 1,531 | 3 | Crowdsourced signal only (no registered tower) |
| Divisoria | 2,503 | 7 | Crowdsourced signal only (no registered tower) |
| Dubinan East | 3,520 | 3 | Crowdsourced signal only (no registered tower) |
| Dubinan West | 2,468 | 0 | Dead zone: no towers from any source |
| Luna | 1,466 | 0 | Dead zone: no towers from any source |
| Mabini | 11,984 | 19 | Crowdsourced signal only (no registered tower) |
| Malvar | 7,075 | 8 | Crowdsourced signal only (no registered tower) |
| Nabbuan | 5,043 | 2 | Crowdsourced signal only (no registered tower) |
| Naggasican | 4,751 | 0 | Dead zone: no towers from any source |
| Patul | 2,692 | 19 | Crowdsourced signal only (no registered tower) |
| Plaridel | 4,513 | 13 | Crowdsourced signal only (no registered tower) |
| Rizal | 11,023 | 16 | Crowdsourced signal only (no registered tower) |
| Rosario | 8,431 | 13 | Crowdsourced signal only (no registered tower) |
| Sagana | 5,754 | 0 | Dead zone: no towers from any source |
| Salvador | 3,542 | 2 | Crowdsourced signal only (no registered tower) |
| San Andres | 1,652 | 4 | Crowdsourced signal only (no registered tower) |
| San Isidro | 1,077 | 5 | Crowdsourced signal only (no registered tower) |
| San Jose | 1,216 | 0 | Dead zone: no towers from any source |
| Santa Rosa | 700 | 0 | Dead zone: no towers from any source |
| Sinili | 1,245 | 0 | Dead zone: no towers from any source |
| Sinsayon | 3,136 | 1 | Crowdsourced signal only (no registered tower) |
| Victory Norte | 3,924 | 4 | Crowdsourced signal only (no registered tower) |
| Victory Sur | 1,864 | 1 | Crowdsourced signal only (no registered tower) |
| Villa Gonzaga | 2,103 | 4 | Crowdsourced signal only (no registered tower) |
| Villasis | 3,432 | 15 | Crowdsourced signal only (no registered tower) |