The density of  people in Derby is 630/sq km  (1,600/sq mi) . The Derby citys' lowest elevation is 620 ft . Oscar Moreno (PDP-Laban) is the mayor of Derby . Derby is the government of U.S. National Park Service . The city land area is 16.0 sq mi (41.4 sq km) . The demonym of the city Derby is Istanbulite  . Derby is at an elevation of 750 ft . The density of  inhabitents in  the metro region of Derby is 210.9/km 2  (546.2/sq mi) . 7,860,781 is the population of the urban region of Derby . The city water area is 45.3 sq mi (117.4 sq km) . The city was incorporated in 1871 (Huntington) . The population of the metro region is 1,766,823 .  The city area code is +56 2 . The province of the city Derby is Oran Province . This city is named after Harry Culver . 41°43′N 44°47′E﻿ / ﻿41.717°N 44.783°E are the coordinates of the city. . The Derby city highest elevation is 5,364 m (17,598 ft) . Derby is located in Liberty Island , Manhattan, New York City, , New York, U.S. . Area : 126 km2 (49 sq mi) is the area of the city namedDerby
343 sq mi area of the city Derby is land