Atimonan comprises 42 barangays with an estimated population of 65,320. 21 of its barangays (50%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Angeles | 11,427 | 14 | Crowdsourced signal only (no registered tower) |
| Balubad | 2,794 | 1 | Crowdsourced signal only (no registered tower) |
| Balugohin | 972 | 3 | Crowdsourced signal only (no registered tower) |
| Barangay Zone 1 (Pob.) | 1,345 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay Zone 2 (Pob.) | 726 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay Zone 3 (Pob.) | 235 | 1 | Crowdsourced signal only (no registered tower) |
| Barangay Zone 4 (Pob.) | 294 | 0 | Dead zone: no towers from any source |
| Buhangin | 1,113 | 6 | Crowdsourced signal only (no registered tower) |
| Caridad Ibaba | 2,052 | 4 | Crowdsourced signal only (no registered tower) |
| Caridad Ilaya | 999 | 0 | Dead zone: no towers from any source |
| Habingan | 140 | 1 | Crowdsourced signal only (no registered tower) |
| Inaclagan | 1,550 | 0 | Dead zone: no towers from any source |
| Inalig | 103 | 0 | Dead zone: no towers from any source |
| Kilait | 1,125 | 2 | Crowdsourced signal only (no registered tower) |
| Kulawit | 454 | 0 | Dead zone: no towers from any source |
| Lakip | 942 | 0 | Dead zone: no towers from any source |
| Lubi | 1,070 | 0 | Dead zone: no towers from any source |
| Lumutan | 447 | 6 | Crowdsourced signal only (no registered tower) |
| Magsaysay | 1,407 | 3 | Crowdsourced signal only (no registered tower) |
| Malinao Ibaba | 1,433 | 5 | Crowdsourced signal only (no registered tower) |
| Malinao Ilaya | 1,812 | 14 | Crowdsourced signal only (no registered tower) |
| Malusak | 2,254 | 1 | Crowdsourced signal only (no registered tower) |
| Manggalayan Bundok | 288 | 0 | Dead zone: no towers from any source |
| Manggalayan Labak | 5,645 | 0 | Dead zone: no towers from any source |
| Matanag | 160 | 0 | Dead zone: no towers from any source |
| Montes Balaon | 314 | 0 | Dead zone: no towers from any source |
| Montes Kallagan | 181 | 0 | Dead zone: no towers from any source |
| Ponon | 3,698 | 0 | Dead zone: no towers from any source |
| Rizal | 946 | 1 | Crowdsourced signal only (no registered tower) |
| San Andres Bundok | 215 | 0 | Dead zone: no towers from any source |
| San Andres Labak | 1,039 | 0 | Dead zone: no towers from any source |
| San Isidro | 3,979 | 26 | Crowdsourced signal only (no registered tower) |
| San Jose Balatok | 362 | 0 | Dead zone: no towers from any source |
| San Rafael | 1,185 | 0 | Dead zone: no towers from any source |
| Santa Catalina | 1,461 | 21 | Crowdsourced signal only (no registered tower) |
| Sapaan | 1,558 | 0 | Dead zone: no towers from any source |
| Sokol | 386 | 0 | Dead zone: no towers from any source |
| Tagbakin | 4,810 | 8 | Crowdsourced signal only (no registered tower) |
| Talaba | 2,020 | 1 | Crowdsourced signal only (no registered tower) |
| Tinandog | 1,542 | 5 | Crowdsourced signal only (no registered tower) |
| Villa Ibaba | 442 | 0 | Dead zone: no towers from any source |
| Villa Ilaya | 395 | 0 | Dead zone: no towers from any source |