The postal code of the city is 9XXXXXX . Kakha Kaladze is the mayor of Derby . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Derby . The area of the urban region is 335.4 sq mi (539.7 km 2 ) . The city was incorporated in 1799 (Guyandotte) . The Derby citys' lowest elevation is 190 m  . The city water area is 0.37 sq mi (0.95 km 2 ) . The city Derby province is Sichuan . This city is named after Rao Jodha . The Derby city highest elevation is 91 m (299 ft) . 68.17 sq mi (176.56 sq km) is the area of the city namedDerby . 8°3′S 34°54′W﻿ / ﻿8.050°S 34.900°W are the coordinates of the city. . +82-53 is the area code of Derby . The density of  residents in Derby is 850/km 2  (2,200/sq mi) . Derby is at an elevation of 20 ft . The demonym of the city Derby is Santiaguinos  (- as ) . Derby is located in Magelang, Central Java . The land area of the city is 225.73 sq km  (87.15 sq mi) . 7,500/km 2  (19,000/sq mi) is the density of inhabitents in  the urban region of Derby
Derby has an area of 176.56 sq km