(+20) 3 is the area code of Derby . The metro region has 8,653,521 , 8,917,749 (Extended UA) population . The demonym of the city Derby is Indori . The city water area is 0.36 sq mi (0.92 km 2 ) . The density of  inhabitents in Derby is 9,821/km 2  (25,436/sq mi) (2017) . Derby is the government of Kamloops City Council . The city is Area: 619 km2 (239 sq mi) in area . The mayor of Derby is Soham El Wardini (2018) (BSS/PS) . The highest elevation of Derby is 324 m (1,063 ft) . The postal code of the city is 95100 . The density of  residents in  the metro region of Derby is 1,275/km 2  (3,300/sq mi) . The city Derby province is Sichuan . 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W are the coordinates of the city. . This city is named after Christ Church, Oxford . Derby is located in Cameroon . Derby is at an elevation of 404 ft . The city was incorporated in February 17, 1909 . The city land area is 39.28 sq mi (101.74 km 2 ) . The lowest elevation of Derby is 75 m  . The density of  inhabitents in  the urban region of Derby is 464.71/km 2  (1,203.6/sq mi)
Water covers 811 sq mi area of the city