Also known as: Lalawigan ng Zambales
Zambales is a province in Region III (Central Luzon). Population 681K (PSA 2024 census), 0 component cities + 13 municipalities, 230 barangays total, land area 3,630.35 km². Provincial capital: Iba.
Zambales is a province in Region III (Central Luzon). Its capital is Iba.
No. Zambales is a province in Region III (Central Luzon), outside Metro Manila (the National Capital Region).
Zambales had 681,225 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.
Zambales covers 3,630.35 km², per the PSA Philippine Statistical Yearbook figure used on this page.
Zambales has 0 component cities and 13 municipalities (13 LGUs under the province), per PSA's Philippine Standard Geographic Code (2Q 2026), and 230 barangays. Olongapo City is a highly urbanized city located within Zambales but administered independently of the province, so it is not counted above; counting it, there is 1 cities in all.
Zambales has no component cities. Its 13 municipalities are Botolan, Cabangan, Candelaria, Castillejos, Iba, Masinloc, Palauig, San Antonio, San Felipe, San Marcelino, San Narciso, Santa Cruz and Subic. Olongapo City is a highly urbanized city located within Zambales but administered independently of the province, so it is not counted above; counting it, there is 1 cities in all.
Zambales has no cities of its own — Olongapo, though geographically surrounded by the province, is an independently-chartered Highly Urbanized City with its own government. The province's most consequential land-use feature, the Subic Bay Freeport Zone, isn't wholly inside Zambales either: created under Republic Act No. 7227 following the U.S. Navy's 1992 departure from its century-old Subic base, the Freeport spans the Municipality of Subic in Zambales together with Olongapo City and two municipalities in neighboring Bataan, administered nationally by the Subic Bay Metropolitan Authority.
Key industries: Subic Bay Freeport Zone (partial), Tourism (Mt. Pinatubo crater lake), Mango, Fishing
Mount Pinatubo's 1991 eruption remains a defining, still-visible feature of the province's land: the crater filled with rainwater to form Lake Pinatubo, and Botolan's local government now runs an annual 4x4 tourism season to the crater lake, officially closed during heavy rain because of ongoing lahar-flood risk more than three decades later. Mango has also become a genuinely provincial-scale industry, with roughly 7,500 hectares under cultivation and 5,000-plus farmers organized under the province's own Mango Green Valley Project.
Key industries: Subic Bay Freeport Zone (partial -- also spans Olongapo City and 2 Bataan municipalities), Tourism (Mt. Pinatubo crater lake), Mango, Fishing
More on the regulatory framework: CLUP explainer · RA 7160 explainer · SGLG explainer · full glossary. Working a CLUP review cycle? Run the CLUP readiness self-check or see CLUP compliance monitoring.
A province whose signature economic zone spans two other jurisdictions, whose land still bears the mark of a 1991 volcanic eruption three decades on, and whose own provincial SGLG history includes a claim that didn't survive a direct source check, is a strong case for a dashboard that keeps a PPDO's cross-jurisdiction facts straight rather than repeated from an unverified source.
Between a Freeport zone shared with two other jurisdictions and a governance record that includes an unverified award claim, Zambales' PPDO has real facts worth getting right in one place. A Nova Gov pilot does exactly that across all 13 municipalities.
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