Jovellar comprises 23 barangays with an estimated population of 13,996. 21 of its barangays (91%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Aurora Pob. (Bgy. 6) | 135 | 0 | Dead zone: no towers from any source |
| Bagacay | 1,098 | 0 | Dead zone: no towers from any source |
| Bautista | 1,024 | 0 | Dead zone: no towers from any source |
| Cabraran | 1,363 | 0 | Dead zone: no towers from any source |
| Calzada Pob. (Bgy. 7) | 66 | 0 | Dead zone: no towers from any source |
| Del Rosario | 298 | 0 | Dead zone: no towers from any source |
| Estrella | 452 | 0 | Dead zone: no towers from any source |
| Florista | 948 | 0 | Dead zone: no towers from any source |
| Mabini Pob. (Bgy. 2) | 48 | 0 | Dead zone: no towers from any source |
| Magsaysay Pob (Bgy. 4) | 28 | 0 | Dead zone: no towers from any source |
| Mamlad | 633 | 0 | Dead zone: no towers from any source |
| Maogog | 1,363 | 0 | Dead zone: no towers from any source |
| Mercado Pob. (Bgy. 5) | 5 | 0 | Dead zone: no towers from any source |
| Plaza Pob. (Bgy. 3) | 38 | 1 | Crowdsourced signal only (no registered tower) |
| Quitinday Pob. (Bgy. 8) | 291 | 1 | Crowdsourced signal only (no registered tower) |
| Rizal Pob. (Bgy. 1) | 212 | 0 | Dead zone: no towers from any source |
| Salvacion | 501 | 0 | Dead zone: no towers from any source |
| San Isidro | 625 | 0 | Dead zone: no towers from any source |
| San Roque | 1,236 | 0 | Dead zone: no towers from any source |
| San Vicente | 1,503 | 0 | Dead zone: no towers from any source |
| Sinagaran | 199 | 0 | Dead zone: no towers from any source |
| Villa Paz | 881 | 0 | Dead zone: no towers from any source |
| White Deer Pob. (Bgy. 9) | 1,049 | 0 | Dead zone: no towers from any source |