Derby is at an elevation of 2250 m . Derby is the government of National Park Service . 89.63 sq mi (232.14 km 2 ) is the area of the city namedDerby . The city has the postal code 21500 . Derby is located in Miami-Dade, Monroe, & Collier counties, Florida, United States . 12°8′11″N 86°15′5″W﻿ / ﻿12.13639°N 86.25139°W are the coordinates of the city. . The city province is Razavi Khorasan . The density of  residents in  the metro region of Derby is 4,484/km 2  (11,610/sq mi) . 335.4 sq mi (539.7 km 2 ) is the area of the urban region of Derby . On December 23, 1814 (village) the city was incorporated . The density of  residents in  the urban region of Derby is 2,300/km 2  (6,100/sq mi) . The lowest elevation of Derby is 190 m  . The city Derby demonym is Indori . The density of  inhabitents in Derby is 280/km 2  (740/sq mi) . This city is named after Society of the Cincinnati . The area of the metro region is Area: 2,768 km2 (1,068.7 sq mi) . The mayor of Derby is Ravinder Bhalla (term ends December 31, 2021) . The city land area is 39.28 sq mi (101.74 km 2 ) .  The city area code is (0)2
There are more than 700 residents per sq mi in Derby