Olongapo City comprises 17 barangays with an estimated population of 178,398. 0 of its barangays (0%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Asinan | 1,085 | 26 | Verified coverage (NTC + crowdsourced) |
| Banicain | 2,333 | 10 | Crowdsourced signal only (no registered tower) |
| Barretto | 7,312 | 46 | Verified coverage (NTC + crowdsourced) |
| East Bajac-bajac | 12,627 | 45 | Verified coverage (NTC + crowdsourced) |
| East Tapinac | 7,532 | 26 | Verified coverage (NTC + crowdsourced) |
| Gordon Heights | 8,735 | 22 | Verified coverage (NTC + crowdsourced) |
| Kalaklan | 23,807 | 24 | Verified coverage (NTC + crowdsourced) |
| Mabayuan | 3,281 | 8 | Verified coverage (NTC + crowdsourced) |
| New Cabalan | 7,846 | 14 | Verified coverage (NTC + crowdsourced) |
| New Ilalim | 965 | 2 | Crowdsourced signal only (no registered tower) |
| New Kababae | 2,054 | 1 | Crowdsourced signal only (no registered tower) |
| New Kalalake | 2,572 | 17 | Verified coverage (NTC + crowdsourced) |
| Old Cabalan | 62,630 | 358 | Verified coverage (NTC + crowdsourced) |
| Pag-asa | 494 | 10 | Crowdsourced signal only (no registered tower) |
| Santa Rita | 28,929 | 41 | Verified coverage (NTC + crowdsourced) |
| West Bajac-bajac | 2,802 | 34 | Verified coverage (NTC + crowdsourced) |
| West Tapinac | 3,394 | 8 | Verified coverage (NTC + crowdsourced) |