The water area of the city is 0.37 sq mi (0.95 km 2 ) . The highest elevation of Derby is 91 m (299 ft) . 68.17 sq mi (176.56 sq km) is the area of the city namedDerby . The city Derby demonym is Santiaguinos  (- as ) .  The city area code is +82-53 . The Derby citys' lowest elevation is 190 m  . 7,500/km 2  (19,000/sq mi) is the density of inhabitents in  the urban region of Derby . On 1799 (Guyandotte) the city was incorporated . 335.4 sq mi (539.7 km 2 ) is the area of the urban region of Derby . The density of  residents in Derby is 850/km 2  (2,200/sq mi) . Derby is named for Rao Jodha . The province of the city Derby is Sichuan . Derby is located in Magelang, Central Java . The city land area is 225.73 sq km  (87.15 sq mi) . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Derby . Kakha Kaladze is the mayor of Derby . Derby is at an elevation of 6 m . The postal code of the city is 9XXXXXX . 8°3′S 34°54′W﻿ / ﻿8.050°S 34.900°W are the coordinates of the city.
The area of this city is more than 94 sq km