San Mateo comprises 15 barangays with an estimated population of 270,197. 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 |
|---|---|---|---|
| Ampid I | 34,115 | 103 | Crowdsourced signal only (no registered tower) |
| Ampid II | 4,258 | 12 | Crowdsourced signal only (no registered tower) |
| Banaba | 25,978 | 73 | Crowdsourced signal only (no registered tower) |
| Dulong Bayan 1 | 16,531 | 8 | Crowdsourced signal only (no registered tower) |
| Dulong Bayan 2 | 12,768 | 14 | Crowdsourced signal only (no registered tower) |
| Guinayang | 7,099 | 8 | Crowdsourced signal only (no registered tower) |
| Guitnang Bayan I (Pob.) | 13,576 | 70 | Crowdsourced signal only (no registered tower) |
| Guitnang Bayan II (Pob.) | 33,228 | 35 | Crowdsourced signal only (no registered tower) |
| Gulod Malaya | 16,246 | 14 | Crowdsourced signal only (no registered tower) |
| Malanday | 15,829 | 14 | Crowdsourced signal only (no registered tower) |
| Maly | 11,986 | 7 | Crowdsourced signal only (no registered tower) |
| Pintong Bocawe | 28,062 | 2 | Crowdsourced signal only (no registered tower) |
| Santa Ana | 2,323 | 26 | Crowdsourced signal only (no registered tower) |
| Santo Niño | 2,752 | 24 | Crowdsourced signal only (no registered tower) |
| Silangan | 45,446 | 38 | Crowdsourced signal only (no registered tower) |