Liloan comprises 14 barangays with an estimated population of 129,011. 4 of its barangays (29%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Cabadiangan | 2,184 | 0 | Dead zone: no towers from any source |
| Calero | 1,578 | 2 | Verified coverage (NTC + crowdsourced) |
| Catarman | 34,586 | 15 | Verified coverage (NTC + crowdsourced) |
| Cotcot | 5,213 | 15 | Verified coverage (NTC + crowdsourced) |
| Jubay | 7,683 | 15 | Verified coverage (NTC + crowdsourced) |
| Lataban | 1,719 | 1 | Crowdsourced signal only (no registered tower) |
| Mulao | 1,090 | 0 | Dead zone: no towers from any source |
| Poblacion | 13,680 | 42 | Verified coverage (NTC + crowdsourced) |
| San Roque | 4,175 | 2 | Crowdsourced signal only (no registered tower) |
| San Vicente | 5,730 | 7 | Verified coverage (NTC + crowdsourced) |
| Santa Cruz | 2,981 | 0 | Dead zone: no towers from any source |
| Tabla | 1,072 | 0 | Dead zone: no towers from any source |
| Tayud | 12,272 | 49 | Verified coverage (NTC + crowdsourced) |
| Yati | 35,048 | 47 | Verified coverage (NTC + crowdsourced) |