Perez comprises 14 barangays with an estimated population of 12,512. 14 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagong Pag-Asa Pob. (Barangay 3) | 429 | 0 | Dead zone: no towers from any source |
| Bagong Silang Pob. (Barangay 4) | 246 | 0 | Dead zone: no towers from any source |
| Maabot | 414 | 0 | Dead zone: no towers from any source |
| Mainit Norte | 665 | 0 | Dead zone: no towers from any source |
| Mainit Sur | 1,151 | 0 | Dead zone: no towers from any source |
| Mapagmahal Pob. (Barangay 2) | 766 | 0 | Dead zone: no towers from any source |
| Pagkakaisa Pob. (Barangay 1) | 2,367 | 0 | Dead zone: no towers from any source |
| Pambuhan | 1,226 | 0 | Dead zone: no towers from any source |
| Pinagtubigan Este | 916 | 0 | Dead zone: no towers from any source |
| Pinagtubigan Weste | 2,405 | 0 | Dead zone: no towers from any source |
| Rizal | 320 | 0 | Dead zone: no towers from any source |
| Sangirin | 745 | 0 | Dead zone: no towers from any source |
| Villamanzano Norte | 406 | 0 | Dead zone: no towers from any source |
| Villamanzano Sur | 456 | 0 | Dead zone: no towers from any source |