The water area of the city is 0.736 sq mi (1.905 sq km) 36.58% . 2,300/km 2  (6,100/sq mi) is the density of inhabitents in  the urban region of Davao City . The Davao City citys' lowest elevation is 2,838 ft . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Davao City . The coordinates of the city are 7°15′55″S 112°44′33″E﻿ / ﻿7.26528°S 112.74250° . The density of  inhabitents in Davao City is 5,165.1/km 2  (13,378/sq mi) . The city is Area: 223 km2 (86 sq mi) in area . Davao City is located in Colombia . The demonym of the city Davao City is Istanbulite  . The population of the urban region is Population (2014): 5,160,512 . The city has the postal code 080020 . On 1871 (Huntington) the city was incorporated . Davao City is at an elevation of 72 ft . The province of the city Davao City is Guayas . 13,542,900 is the population of the metro region of Davao City . Davao City is named for Christopher Columbus . The city land area is 340.5 sq mi (881.9 sq km) . 71 is the area code of Davao City
+374 10 is a prefix required to call a number in Davao City