The lowest elevation of Tbilisi is 1 m  . Tbilisi is located in Iwaki, Fukushima, Japan . The metro region has 4,597,134 population . Tbilisi is at an elevation of 320 ft . On September 20, 1917 the city was incorporated . The city province is East Java . The area of the urban region is 225,574 km 2  (87,095 sq mi) . The land area of the city is 840 km 2  (325 sq mi) . The density of  inhabitents in Tbilisi is 3,351/km 2  (8,680/sq mi) . The Tbilisi city highest elevation is 2,715 m (8,907 ft) . 22 is the area code of Tbilisi . This city is named after Quitu . 2°11′S 79°53′W﻿ / ﻿2.183°S 79.883°W  are the coordinates of the city. . 2,121 km 2  (819 sq mi) is the area of the city namedTbilisi . Tbilisi is the government of Swedish Ice Hockey Association . Tri Rismaharini is the mayor of Tbilisi . The water area of the city is 45.3 sq mi (117.4 sq km) . The density of  residents in  the urban region of Tbilisi is 14,100/km 2  (37,000/sq mi) . The city Tbilisi demonym is Caleño . The city has the postal code 8320000
2272 km 2 is the area of Tbilisi