68.17 sq mi (176.56 sq km) is the area of the city namedDerby . 850/km 2  (2,200/sq mi) is the density of inhabitents in Derby .  The city area code is +82-53 . On 1799 (Guyandotte) the city was incorporated . The city water area is 0.37 sq mi (0.95 km 2 ) . The density of  people in  the urban region of Derby is 7,500/km 2  (19,000/sq mi) . The Derby city highest elevation is 91 m (299 ft) . The lowest elevation of Derby is 620 ft . 8°3′S 34°54′W﻿ / ﻿8.050°S 34.900°W are the coordinates of the city. . This city is named after Rao Jodha . Derby is located in Magelang, Central Java . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Derby . Derby is at an elevation of 6 m . 335.4 sq mi (539.7 km 2 ) is the area of the urban region of Derby . The city Derby demonym is Santiaguinos  (- as ) . The land area of the city is 225.73 sq km  (87.15 sq mi) . Kakha Kaladze is the mayor of Derby . The province of the city Derby is Sichuan . The city has the postal code 9XXXXXX
The native of the city Derby are also called Santiaguinos  (- as )