The province of the city Davao City is Guayas . 2,300/km 2  (6,100/sq mi) is the density of inhabitents in  the urban region of Davao City . The city was incorporated in 1871 (Huntington) . Davao City is at an elevation of 22 m .  The city area code is 71 . Area: 223 km2 (86 sq mi) is the area of the city namedDavao City . The land area of the city is 340.5 sq mi (881.9 sq km) . 7°15′55″S 112°44′33″E﻿ / ﻿7.26528°S 112.74250° are the coordinates of the city. . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Davao City . The water area of the city is 0.736 sq mi (1.905 sq km) 36.58% . The urban region has Population (2014): 5,160,512 population . 5,165.1/km 2  (13,378/sq mi) is the density of people in Davao City . The postal code of the city is 080020 . Davao City is named for Christopher Columbus . Davao City is located in Colombia . The population of the metro region is 13,542,900 . The demonym of the city Davao City is Istanbulite  . The Davao City citys' lowest elevation is 865 m 
There are more than 2223 residents per km 2 in the urban region of Davao City