Alegria comprises 9 barangays with an estimated population of 20,204. 5 of its barangays (56%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Compostela | 1,919 | 0 | Dead zone: no towers from any source |
| Guadalupe | 3,146 | 0 | Dead zone: no towers from any source |
| Legaspi | 933 | 4 | Crowdsourced signal only (no registered tower) |
| Lepanto | 2,815 | 0 | Dead zone: no towers from any source |
| Madridejos | 3,144 | 1 | Crowdsourced signal only (no registered tower) |
| Montpeller | 2,630 | 0 | Dead zone: no towers from any source |
| Poblacion | 1,466 | 8 | Crowdsourced signal only (no registered tower) |
| Santa Filomena | 1,714 | 1 | Crowdsourced signal only (no registered tower) |
| Valencia | 2,437 | 0 | Dead zone: no towers from any source |