San Francisco comprises 27 barangays with an estimated population of 89,966. 11 of its barangays (41%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alegria | 8,934 | 3 | Crowdsourced signal only (no registered tower) |
| Barangay 1 (Pob.) | 6,118 | 4 | Crowdsourced signal only (no registered tower) |
| Barangay 2 (Pob.) | 2,913 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay 3 (Pob.) | 2,946 | 2 | Crowdsourced signal only (no registered tower) |
| Barangay 4 (Pob.) | 2,871 | 3 | Crowdsourced signal only (no registered tower) |
| Barangay 5 (Pob.) | 8,711 | 7 | Crowdsourced signal only (no registered tower) |
| Bayugan 2 | 7,515 | 3 | Crowdsourced signal only (no registered tower) |
| Bitan-agan | 3,761 | 0 | Dead zone: no towers from any source |
| Borbon | 787 | 1 | Crowdsourced signal only (no registered tower) |
| Buenasuerte | 4,317 | 0 | Dead zone: no towers from any source |
| Caimpugan | 2,140 | 0 | Dead zone: no towers from any source |
| Das-agan | 3,026 | 0 | Dead zone: no towers from any source |
| Ebro | 2,770 | 0 | Dead zone: no towers from any source |
| Hubang | 3,209 | 7 | Crowdsourced signal only (no registered tower) |
| Karaus | 3,498 | 0 | Dead zone: no towers from any source |
| Ladgadan | 1,089 | 0 | Dead zone: no towers from any source |
| Lapinigan | 5,469 | 4 | Crowdsourced signal only (no registered tower) |
| Lucac | 469 | 0 | Dead zone: no towers from any source |
| Mate | 664 | 0 | Dead zone: no towers from any source |
| New Visayas | 637 | 2 | Crowdsourced signal only (no registered tower) |
| Ormaca | 1,159 | 0 | Dead zone: no towers from any source |
| Pasta | 4,151 | 6 | Crowdsourced signal only (no registered tower) |
| Pisa-an | 3,895 | 4 | Crowdsourced signal only (no registered tower) |
| Rizal | 1,018 | 1 | Crowdsourced signal only (no registered tower) |
| San Isidro | 4,729 | 3 | Crowdsourced signal only (no registered tower) |
| Santa Ana | 2,568 | 1 | Crowdsourced signal only (no registered tower) |
| Tagapua | 602 | 0 | Dead zone: no towers from any source |