Tudela comprises 11 barangays with an estimated population of 4,683. 10 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 |
|---|---|---|---|
| Buenavista | 321 | 1 | Crowdsourced signal only (no registered tower) |
| Calmante | 501 | 0 | Dead zone: no towers from any source |
| Daan Secante | 161 | 0 | Dead zone: no towers from any source |
| General | 346 | 0 | Dead zone: no towers from any source |
| McArthur | 383 | 0 | Dead zone: no towers from any source |
| Northern Poblacion | 83 | 0 | Dead zone: no towers from any source |
| Puertobello | 1,495 | 0 | Dead zone: no towers from any source |
| Santander | 510 | 0 | Dead zone: no towers from any source |
| Secante Bag-o | 336 | 0 | Dead zone: no towers from any source |
| Southern Poblacion | 166 | 0 | Dead zone: no towers from any source |
| Villahermosa | 381 | 0 | Dead zone: no towers from any source |