The density of  residents in  the urban region of Karaj is 2,305/km 2  (5,970/sq mi) . The population of Karaj is Population: 2,400,653 (2012) . The Karaj citys' lowest elevation is 75 m  . 1,600/sq km  (4,200/sq mi) is the density of residents in  the metro region of Karaj . Karaj is located in Czech Republic . This city is named after Christopher Columbus . The highest elevation of Karaj is 5,364 m (17,598 ft) . The city water area is 551.92 sq mi (1,429.46 km 2 ) . Karaj is the government of Parks Canada . The land area of the city is 194.74 sq mi (504.38 km 2 ) . The demonym of the city Karaj is Marabin, Maracaibero(a), Maracucho(a) . The mayor of Karaj is Rafael Greca (PMN) . 630/sq km  (1,600/sq mi) is the density of residents in Karaj . The coordinates of the city are 12°8′11″N 86°15′5″W﻿ / ﻿12.13639°N 86.25139°W . The province of the city Karaj is Cebu (geographically only) . The urban region is 24.581 sq mi (63.66 km2) in area . +55 (41) is the area code of Karaj . Karaj is at an elevation of 4 m . The city has the postal code 8320000 . The population of the metro region is Population (2015): 2,500,000
+55 (41) code is required to call a number in Karaj