This city is named after Christopher Columbus . The land area of the city is 5.39 sq mi (13.96 km 2 ) . Busan is at an elevation of 2382 ft . The mayor of Busan is Vladimir Panov . Busan is the government of U.S. National Park Service . The postal code of the city is 9XXXXXX . The city Busan demonym is Tianjinese , Tianjiner . The water area of the city is 6.286 sq mi (16.281 km 2 ) 29.82% . Busan has 1,042,641 population . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Busan . On 1900 the city was incorporated . The lowest elevation of Busan is 380 m  . The Busan city highest elevation is 424 m (1,391 ft) . The city Busan province is Razavi Khorasan . (+20) 3 is the area code of Busan . 1,371.76 km 2  (529.64 sq mi) is the area of the metro region of Busan . 2,300/km 2  (6,100/sq mi) is the density of inhabitents in  the urban region of Busan . The density of  people in Busan is 1,600/km 2  (4,200/sq mi) (2011) . The area of the urban region is 1,407.2 sq mi (3,645 sq km) . Busan is located in Zimbabwe
59.17 percentage is water in Busan