Say Olongapo et unaan ya klase a siyudad ed luyag na Pegley na Luzon, Filipinas. Unong ed 1 Mayo 2020 census, say populasyon to et 260,317 totoo tan 66,450 abong. Walay kabaleg tan sukat to ya 185.00 sq. km. Say zip code to et 2200.
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Census of Population (2015). "Region III (Central Luzon)". Total Population by Province, City, Municipality and Barangay. PSA. Retrieved 29 June 2016.
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Census of Population and Housing (2010). "Region III (Central Luzon)". Total Population by Province, City, Municipality and Barangay. NSO. Retrieved 29 June 2016.