San Rafael comprises 34 barangays with an estimated population of 105,695. 13 of its barangays (38%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| BMA-Balagtas | 6,572 | 2 | Crowdsourced signal only (no registered tower) |
| Banca-banca | 544 | 3 | Crowdsourced signal only (no registered tower) |
| Caingin | 11,661 | 7 | Crowdsourced signal only (no registered tower) |
| Capihan | 1,844 | 8 | Crowdsourced signal only (no registered tower) |
| Coral na Bato | 10,892 | 7 | Crowdsourced signal only (no registered tower) |
| Cruz na Daan | 743 | 3 | Crowdsourced signal only (no registered tower) |
| Dagat-dagatan | 10,084 | 1 | Crowdsourced signal only (no registered tower) |
| Diliman I | 3,329 | 0 | Dead zone: no towers from any source |
| Diliman II | 593 | 0 | Dead zone: no towers from any source |
| Libis | 604 | 0 | Dead zone: no towers from any source |
| Lico | 4,323 | 2 | Crowdsourced signal only (no registered tower) |
| Maasim | 1,888 | 11 | Crowdsourced signal only (no registered tower) |
| Mabalas-balas | 898 | 2 | Crowdsourced signal only (no registered tower) |
| Maguinao | 2,030 | 6 | Crowdsourced signal only (no registered tower) |
| Maronquillo | 1,981 | 2 | Crowdsourced signal only (no registered tower) |
| Paco | 978 | 0 | Dead zone: no towers from any source |
| Pansumaloc | 1,959 | 0 | Dead zone: no towers from any source |
| Pantubig | 3,534 | 0 | Dead zone: no towers from any source |
| Pasong Bangkal | 1,006 | 0 | Dead zone: no towers from any source |
| Pasong Callos | 585 | 0 | Dead zone: no towers from any source |
| Pasong Intsik | 8,060 | 1 | Crowdsourced signal only (no registered tower) |
| Pinacpinacan | 2,018 | 1 | Crowdsourced signal only (no registered tower) |
| Poblacion | 830 | 0 | Dead zone: no towers from any source |
| Pulo | 2,464 | 3 | Crowdsourced signal only (no registered tower) |
| Pulong Bayabas | 1,827 | 0 | Dead zone: no towers from any source |
| Salapungan | 2,000 | 0 | Dead zone: no towers from any source |
| Sampaloc | 2,912 | 16 | Crowdsourced signal only (no registered tower) |
| San Agustin | 544 | 0 | Dead zone: no towers from any source |
| San Roque | 3,012 | 12 | Crowdsourced signal only (no registered tower) |
| Sapang Pahalang | 218 | 3 | Crowdsourced signal only (no registered tower) |
| Talacsan | 3,447 | 9 | Crowdsourced signal only (no registered tower) |
| Tambubong | 4,292 | 1 | Crowdsourced signal only (no registered tower) |
| Tukod | 2,402 | 0 | Dead zone: no towers from any source |
| Ulingao | 5,621 | 24 | Crowdsourced signal only (no registered tower) |