Tbilisi is the government of Municipality of Quito . The mayor of Tbilisi is Federico Gutiérrez, 2016-2019 . The land area of the city is 11,609.91 km 2  (4,482.61 sq mi) . 8,653,521 , 8,917,749 (Extended UA) is the population of the metro region of Tbilisi . +226 is the area code of Tbilisi . Tbilisi is located in Sanma Province, Vanuatu . On 1871 (Huntington) the city was incorporated . Tbilisi is named for Calgary, Mull . The coordinates of the city are 00°14′S 78°31′W﻿ / ﻿0.233°S 78.517°W . The density of  residents in  the metro region of Tbilisi is 1,500/km 2  (3,900/sq mi) . The demonym of the city Tbilisi is Durbanite . The lowest elevation of Tbilisi is 620 ft . Tbilisi is at an elevation of 934.6 m . The density of  residents in Tbilisi is 1,100/sq km  (2,900/sq mi) . The postal code of the city is EC1701 . The water area of the city is 6.80 sq mi (17.62 sq km )  3.0% . 2,122 sq mi (5,496 sq km ) is the area of the urban region of Tbilisi . The Tbilisi city highest elevation is 5,364 m (17,598 ft) . The city is Area: 116 km2 (45 sq mi) in area . 7,500/km 2  (19,000/sq mi) is the density of people in  the urban region of Tbilisi
There are 19000 inhabitents per sq mi in the urban region of Tbilisi