The water area of the city is 0.736 sq mi (1.905 km 2 ) 36.58% . Men's field hockey at the 2016 Summer Olympics is the government of U.S. National Park Service . The postal code of the city is 9XXXXXX . The density of  people in  the metro region of Men's field hockey at the 2016 Summer Olympics is 2,500/km 2  (6,600/sq mi) . The lowest elevation of Men's field hockey at the 2016 Summer Olympics is 1,240 ft .  The city area code is +82-53 . Men's field hockey at the 2016 Summer Olympics has Population: 639,598 (2014-urban, others 2013) population . Men's field hockey at the 2016 Summer Olympics is named for Cartagena, Spain . 8,220,207 is the population of the urban region of Men's field hockey at the 2016 Summer Olympics . The city Men's field hockey at the 2016 Summer Olympics demonym is Durbanite . The Men's field hockey at the 2016 Summer Olympics city highest elevation is 770 m (2,530 ft) . 2,500/km 2  (6,400/sq mi) is the density of people in Men's field hockey at the 2016 Summer Olympics . The city Men's field hockey at the 2016 Summer Olympics province is Alborz . The mayor of Men's field hockey at the 2016 Summer Olympics is Mohammad Reza Kalaie . The city land area is 1,117.11 km 2  (431.32 sq mi) . 39°12′45.05″N 140°53′11.217″E﻿ / ﻿39.2125139°N 140.88644917°E﻿ / 39.2125139; 140.88644917 are the coordinates of the city. . Men's field hockey at the 2016 Summer Olympics is at an elevation of 5 m
The peak of the city is at 378 m 