Olongapo City is a philippine highly urbanized city in the province Zambales in Region III Central Luzon which belongs to the Luzon group of islands. The highly urbanized city Olongapo City is seated about 64 km south-south-east of province capital Iba and about 83 km west-north-west of Philippine main capital Manila.
Olongapo City is a 1st class highly urbanized city. Regarding urbanization Olongapo City is classified as urban. Olongapo City occupies an area of 185.00 km². By the end of 2007 Olongapo City was the home of 227,270 residents. Thus by average 1,228.49 people are living on one km².
Administratively the Highly Urbanized City of Olongapo City is subdivided into 17 barangays. The most populous are New Ilalim, New Kababae, Asinan, Pag-asa, West Tapinac, Banicain, West Bajac-bajac, New Kalalake, East Tapinac, Mabayuan, Kalaklan, Barreto, East Bajac-bajac, Old Cabalan, New Cabalan.
Among the bigger cities and municipalities in the neighborhood of Olongapo City there are Taguig City (Fourth District) 91 km east-south-east, City Of Antipolo (Rizal) 99 km east-south-east, City Of Pasig (Second District) 90 km east-south-east, City Of Manila (First District) 82 km east-south-east, Caloocan City (Third District) 76 km east-south-east, Quezon City (Second District) 85 km east-south-east, City Of Parañaque (Fourth District) 84 km east-south-east, City Of Valenzuela (Third District) 75 km east-south-east, City Of Makati (Fourth District) 86 km east-south-east as well as 84 km east-south-east of Olongapo City the highly urbanized city City Of Las Piñas (Fourth District).