Tanauan comprises 54 barangays with an estimated population of 60,410. 33 of its barangays (61%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Ada | 88 | 0 | Dead zone: no towers from any source |
| Amanluran | 573 | 0 | Dead zone: no towers from any source |
| Arado | 484 | 0 | Dead zone: no towers from any source |
| Atipolo | 1,020 | 0 | Dead zone: no towers from any source |
| Balud | 1,044 | 0 | Dead zone: no towers from any source |
| Bangon | 460 | 1 | Crowdsourced signal only (no registered tower) |
| Bantagan | 584 | 0 | Dead zone: no towers from any source |
| Baras | 161 | 1 | Crowdsourced signal only (no registered tower) |
| Binolo | 540 | 0 | Dead zone: no towers from any source |
| Binongto-an | 915 | 0 | Dead zone: no towers from any source |
| Bislig | 1,490 | 1 | Crowdsourced signal only (no registered tower) |
| Buntay (Pob.) | 1,589 | 2 | Crowdsourced signal only (no registered tower) |
| Cabalagnan | 544 | 1 | Crowdsourced signal only (no registered tower) |
| Cabarasan Guti | 286 | 0 | Dead zone: no towers from any source |
| Cabonga-an | 112 | 0 | Dead zone: no towers from any source |
| Cabuynan | 6,276 | 5 | Crowdsourced signal only (no registered tower) |
| Cahumayhumayan | 471 | 0 | Dead zone: no towers from any source |
| Calogcog | 1,719 | 0 | Dead zone: no towers from any source |
| Calsadahay | 693 | 1 | Crowdsourced signal only (no registered tower) |
| Camire | 289 | 0 | Dead zone: no towers from any source |
| Canbalisara | 572 | 0 | Dead zone: no towers from any source |
| Canramos (Pob.) | 2,011 | 4 | Crowdsourced signal only (no registered tower) |
| Catigbian | 409 | 0 | Dead zone: no towers from any source |
| Catmon | 1,762 | 0 | Dead zone: no towers from any source |
| Cogon | 598 | 0 | Dead zone: no towers from any source |
| Guindag-an | 1,119 | 0 | Dead zone: no towers from any source |
| Guingawan | 521 | 1 | Crowdsourced signal only (no registered tower) |
| Hilagpad | 440 | 0 | Dead zone: no towers from any source |
| Kiling | 795 | 2 | Crowdsourced signal only (no registered tower) |
| Lapay | 1,185 | 0 | Dead zone: no towers from any source |
| Licod (Pob.) | 1,953 | 1 | Crowdsourced signal only (no registered tower) |
| Limbuhan Daku | 243 | 5 | Crowdsourced signal only (no registered tower) |
| Limbuhan Guti | 273 | 1 | Crowdsourced signal only (no registered tower) |
| Linao | 245 | 0 | Dead zone: no towers from any source |
| Magay | 944 | 1 | Crowdsourced signal only (no registered tower) |
| Maghulod | 312 | 0 | Dead zone: no towers from any source |
| Malaguicay | 1,840 | 1 | Crowdsourced signal only (no registered tower) |
| Maribi | 1,212 | 0 | Dead zone: no towers from any source |
| Mohon | 2,208 | 5 | Crowdsourced signal only (no registered tower) |
| Pago | 1,565 | 0 | Dead zone: no towers from any source |
| Pasil | 659 | 0 | Dead zone: no towers from any source |
| Pikas | 471 | 0 | Dead zone: no towers from any source |
| Sacme | 542 | 0 | Dead zone: no towers from any source |
| Salvador | 1,019 | 3 | Crowdsourced signal only (no registered tower) |
| San Isidro | 1,806 | 0 | Dead zone: no towers from any source |
| San Miguel (Pob.) | 3,883 | 0 | Dead zone: no towers from any source |
| San Roque (Pob.) | 3,023 | 4 | Crowdsourced signal only (no registered tower) |
| San Victor | 972 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Cruz | 1,057 | 0 | Dead zone: no towers from any source |
| Santa Elena | 453 | 0 | Dead zone: no towers from any source |
| Santo Niño Pob. (Haclagan) | 4,322 | 7 | Crowdsourced signal only (no registered tower) |
| Solano | 693 | 2 | Crowdsourced signal only (no registered tower) |
| Talolora | 561 | 0 | Dead zone: no towers from any source |
| Tugop | 1,404 | 0 | Dead zone: no towers from any source |