5,400/sq km  (14,000/sq mi) is the density of residents in  the urban region of Chengdu . The Chengdu citys' lowest elevation is 1 m  . The density of  people in Chengdu is 280/km 2  (740/sq mi) . The population of the metro region is 5,278,448 . The highest elevation of Chengdu is 241.9 m (793.6 ft) . Chengdu is the government of National Park Service . This city is named after Christopher Columbus . Chengdu is at an elevation of 0.9 m . The water area of the city is 2.52 sq mi (6.53 sq km ) . The coordinates of the city are 7°23′47″N 3°55′0″E﻿ / ﻿7.39639°N 3.91667°E . The city has the postal code 21500 . Thomas Aujero Small is the mayor of Chengdu . The density of  residents in  the metro region of Chengdu is 1,600/sq km  (4,200/sq mi) . The city was incorporated in 1799 (Guyandotte) . The population of Chengdu is January 1, 1894 . The city Chengdu demonym is Tianjinese , Tianjiner . 242 is the area code of Chengdu . The city land area is 16.0 sq mi (41.4 sq km)
In the map the city Chengdu could be found at 59°20′17″N 018°04′20″E﻿ / ﻿59.33806°N 18.07222°E﻿ / 59.33806; 18.07222