La Trinidad (Capital) comprises 16 barangays with an estimated population of 203,339. 2 of its barangays (12%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Alapang | 6,839 | 3 | Verified coverage (NTC + crowdsourced) |
| Alno | 3,334 | 0 | Dead zone: no towers from any source |
| Ambiong | 30,107 | 8 | Verified coverage (NTC + crowdsourced) |
| Bahong | 6,394 | 6 | Verified coverage (NTC + crowdsourced) |
| Balili | 27,529 | 30 | Verified coverage (NTC + crowdsourced) |
| Beckel | 10,227 | 11 | Verified coverage (NTC + crowdsourced) |
| Betag | 8,815 | 21 | Verified coverage (NTC + crowdsourced) |
| Bineng | 2,762 | 0 | Dead zone: no towers from any source |
| Cruz | 4,764 | 4 | Verified coverage (NTC + crowdsourced) |
| Lubas | 5,548 | 1 | Registered tower only (not crowd-verified) |
| Pico | 44,752 | 27 | Verified coverage (NTC + crowdsourced) |
| Poblacion | 9,196 | 11 | Verified coverage (NTC + crowdsourced) |
| Puguis | 16,440 | 6 | Verified coverage (NTC + crowdsourced) |
| Shilan | 4,975 | 5 | Crowdsourced signal only (no registered tower) |
| Tawang | 10,526 | 2 | Crowdsourced signal only (no registered tower) |
| Wangal | 11,131 | 3 | Verified coverage (NTC + crowdsourced) |