<Li> Westernmost: Puerto Princesa </Li> <Li> Easternmost: Bislig </Li> <Ul> <Li> Legazpi City (1948--1954): Legazpi's cityhood was approved on June 18, 1948 . Under Republic Act No. 306, Legazpi became a city after the President of the Philippines proclaimed its cityhood . Comprising the present - day territories of Legazpi City and Daraga, the city was dissolved on June 8, 1954 when Legazpi and Daraga were made into separate municipalities . Legazpi eventually became a city on its own on June 12, 1959 . </Li> <Li> Basilan City (1948--1973): Formerly part of the city of Zamboanga until it was made a city on its own in 1948 through Republic Act No. 288 . Delimited to only the downtown area of what is now Isabela City upon the creation of the province of Basilan in 1973 through Presidential Decree No. 356 by President Ferdinand Marcos . Finally abolished and its territory annexed to the municipality of Isabela on November 7, 1975 through Presidential Decree No. 840 . </Li> <Li> Rajah Buayan City (1966): Under Republic Act No. 4413, the then - municipality of General Santos in what was then the unified province of Cotabato was to be formally converted into a city named after a historical ruler in Mindanao on January 1, 1966, provided that majority of qualified voters in the municipality vote in favor of cityhood in a plebiscite . In December 1965 the Commission on Elections (COMELEC) proclaimed the cityhood of Rajah Buayan, with 4,422 people voting for and 3,066 voting against . However, two residents of the new city challenged this by arguing in the courts that the number of people who voted in favor of cityhood did not form a majority in light of the fact that there were 15,727 voters in the city . The court issued an injunction on January 4, 1966 restraining city officers from performing any acts authorized by or pursuant to provisions in RA 4413 . The Supreme Court unanimously upheld this decision on October 29, 1966 and declared that the city charter was not accepted by majority of voters, thus rendering RA 4413 null and void . The municipality of General Santos would later be converted into a city under the same name in 1968 . </Li> </Ul> <Li> Legazpi City (1948--1954): Legazpi's cityhood was approved on June 18, 1948 . Under Republic Act No. 306, Legazpi became a city after the President of the Philippines proclaimed its cityhood . Comprising the present - day territories of Legazpi City and Daraga, the city was dissolved on June 8, 1954 when Legazpi and Daraga were made into separate municipalities . Legazpi eventually became a city on its own on June 12, 1959 . </Li>

Qualification to become a city in the philippines