Alexandria is the government of U.S. National Park Service . The city water area is 0.36 sq mi (0.92 km 2 ) . The city land area is 840 km 2  (325 sq mi) . The city Alexandria demonym is Medellinense  ,  Paisa . The coordinates of the city are 35°11′N 136°54′E﻿ / ﻿35.183°N 136.900°E .  The city area code is +374 10 . The Alexandria city highest elevation is 1,390 m (4,560 ft) . The urban region has 2,658,355 population . The density of  residents in Alexandria is 5,300/km 2  (14,000/sq mi) . The lowest elevation of Alexandria is 1,250 ft . Alexandria is located in United States . The city Alexandria province is Algiers Province . Alexandria is at an elevation of 381 m . Alexandria is named for John Hunt . The area of the city is Area : 22,142 km2 (8,549 sq mi) . The city has the postal code 090101 to 090158 . 1,275/sq km (3,300/sq mi) is the density of inhabitents in  the metro region of Alexandria . The population of the metro region is 2,842,000
The city is at a height of 20 ft