The mayor of Tbilisi is Tri Rismaharini . Tbilisi is at an elevation of 98 m . The city water area is 45.3 sq mi (117.4 sq km) . Tbilisi is located in Iwaki, Fukushima, Japan . This city is named after Quitu . The lowest elevation of Tbilisi is 3 ft . 3,351/km 2  (8,680/sq mi) is the density of people in Tbilisi . 22 is the area code of Tbilisi . 14,100/km 2  (37,000/sq mi) is the density of residents in  the urban region of Tbilisi . The Tbilisi city highest elevation is 2,715 m (8,907 ft) . Tbilisi is the government of Swedish Ice Hockey Association . 4,597,134 is the population of the metro region of Tbilisi . The city was incorporated in September 20, 1917 . The city is 2,121 km 2  (819 sq mi) in area . The city has the postal code 8320000 . The coordinates of the city are 2°11′S 79°53′W﻿ / ﻿2.183°S 79.883°W  . The land area of the city is 840 km 2  (325 sq mi) . 225,574 km 2  (87,095 sq mi) is the area of the urban region of Tbilisi . The city Tbilisi demonym is Caleño . The city Tbilisi province is East Java
91.77 percentage is land in Tbilisi