Also known as: City of Olongapo
Olongapo City is a highly urbanized city in Zambales, Region III (Central Luzon). Population 265K (PSA 2024 census), 17 barangays, land area 185.0 km².
Olongapo City is a highly urbanized city in Zambales, Region III (Central Luzon).
No. Olongapo City is a highly urbanized city in Zambales, Region III (Central Luzon), outside Metro Manila (the National Capital Region).
Olongapo City had 264,903 residents in the 2024 census (PSA 2024 Census of Population (POPCEN 2024), reference date July 1, 2024). That is the most recent official count. There is no 2026 census result, so any 2026 population figure is an estimate.
Olongapo City covers 185.0 km², per the PSA Philippine Statistical Yearbook figure used on this page.
Olongapo City has 17 barangays.
Olongapo City sits adjacent to Subic Bay Freeport Zone, converted from the former U.S. Naval Base into a logistics, ship repair, tourism, and manufacturing hub. The relationship runs deep: per SBMA's 2024 workforce report, Olongapo residents made up 41.41% of the Freeport's entire workforce, 68,086 of 164,400 workers, across manufacturing, services, shipbuilding and marine services, and construction roles.
Key industries: Freeport logistics and warehousing (Subic Bay), Ship repair and shipbuilding, Tourism, Freeport manufacturing and services
Olongapo's most consequential hazard event in recent memory was the August–September 2013 Kalaklan River flooding, which was followed by a leptospirosis outbreak that had claimed 5 lives and sickened 125 people by an October 2013 hospital report, with Barangay Sta. Rita hit hardest. The city subsequently began dredging the long-neglected Kalaklan River channel, its main outlet to Subic Bay, after identifying years of undesilted waterways as the root cause of the flood's severity. Olongapo's population grew from 260,317 in the 2020 Census to 264,903 in the 2024 Census.
Officials managing Olongapo's Kalaklan River flood risk can compare notes with other Central Luzon coastal cities in the LGU directory. Planning teams evaluating digital compliance tools can explore the pilot program or schedule a consultation.
More on the regulatory framework: CLUP compliance (RA 7160 / EO 72 / DHSUD) · SGLG explainer (RA 11292) · full glossary.
Olongapo's economy is deeply intertwined with a neighboring freeport zone it doesn't govern, while also managing its own chronic river-flood risk — a planning picture that spans jurisdictions and departments. Nova Gov's platform is built for exactly this kind of cross-department coordination, and the pilot program is designed to help planning offices bring hazard overlays and land-use records into one place.
After the 2013 Kalaklan River flood and leptospirosis outbreak, Olongapo had to rebuild both its drainage infrastructure and its hazard-response records. See how a founding pilot could line up hazard overlays with zoning and permitting records ahead of the next event.
Explore the Olongapo City pilot →We build custom software around CLUP, CDP and zoning work, for LGU planning offices and for the planning firms LGUs hire. Free 30-minute workflow call, then a fixed written quote.
See what we build for urban planners →