17,000/sq km (43,000/sq mi) is the density of people in Tbilisi . The demonym of the city Tbilisi is Mashhadi, Mashadi, Mashdi (informal) . 720/km 2  (1,900/sq mi) is the density of residents in  the metro region of Tbilisi . The urban region has 3,372,090 population . Tbilisi is at an elevation of 17 m . The lowest elevation of Tbilisi is 5,740 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 was incorporated in March 6, 1836 (city) . The highest elevation of Tbilisi is 1,879 m (6,165 ft) . The population of the metro region is 13,542,900 . 0211 is the area code of Tbilisi . The city land area is 153.33 sq mi (397.13 km 2 ) . Tbilisi is named for Saint James . The city water area is 1.420 sq mi (3.677 km 2 )  13.73% . The province of the city Tbilisi is Cebu (geographically only) . The mayor of Tbilisi is Tri Rismaharini . The density of  residents in  the urban region of Tbilisi is 7,500/km 2  (19,000/sq mi) . Tbilisi is located in Japan . The city is 385.8 sq mi (999.3 sq km ) in area . The city has the postal code 34000 to 34990
0.75 percentage is water in Tbilisi