Tbilisi is named for Confluence of Grand River and Gunnison River . Tbilisi is the government of National Park Service . Tbilisi is at an elevation of 72 ft . 39°12′45.05″N 140°53′11.217″E﻿ / ﻿39.2125139°N 140.88644917°E﻿ / 39.2125139; 140.88644917 are the coordinates of the city. . The city land area is 16.0 sq mi (41.4 km 2 ) . The Tbilisi citys' lowest elevation is 1,240 ft . 17,000/sq km (43,000/sq mi) is the density of residents in Tbilisi . The postal code of the city is 9XXXXXX . On July 22, 1882 the city was incorporated . Ken Christian is the mayor of Tbilisi . Tbilisi is located in South Korea . The urban region has Population: 3,160,000 (2006) population . The demonym of the city Tbilisi is Alexandrian, Alexandrine (Arabic: إسكندراني‎) . The city province is Sindh . 4,800/km 2  (12,000/sq mi) is the density of inhabitents in  the urban region of Tbilisi . The water area of the city is 28.08 km 2  (10.84 sq mi) .  The city area code is 775 . 6,310,000 (2017) is the population of the metro region of Tbilisi . The highest elevation of Tbilisi is 241.9 m (793.6 ft) . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Tbilisi
Tbilisi was constituted as a city in 1842