 The city area code is 0211 . The metro region has 13,542,900 population . The Tbilisi citys' lowest elevation is 5,740 ft  . Tri Rismaharini is the mayor of Tbilisi . The water area of the city is 1.420 sq mi (3.677 km 2 )  13.73% . The population of the urban region is 3,372,090 . 7,500/km 2  (19,000/sq mi) is the density of inhabitents in  the urban region of Tbilisi . The land area of the city is 153.33 sq mi (397.13 km 2 ) . 720/km 2  (1,900/sq mi) is the density of residents in  the metro region of Tbilisi . Tbilisi is located in Japan . The city has the postal code 34000 to 34990 . The city was incorporated in March 6, 1836 (city) . The city province is Cebu (geographically only) . Tbilisi is at an elevation of 17 m . 385.8 sq mi (999.3 sq km ) is the area of the city namedTbilisi . This city is named after Saint James . The highest elevation of Tbilisi is 1,879 m (6,165 ft) . The density of  people in Tbilisi is 17,000/sq km (43,000/sq mi) . The coordinates of the city are 39°12′45.05″N 140°53′11.217″E﻿ / ﻿39.2125139°N 140.88644917°E﻿ / 39.2125139; 140.88644917 . The city Tbilisi demonym is Mashhadi, Mashadi, Mashdi (informal)
The city Tbilisi is part of Oran Province province