The density of  people in Tbilisi is 17,000/sq km (43,000/sq mi) . Tbilisi is located in Japan . Tbilisi is named for Saint James . The city water area is 1.420 sq mi (3.677 km 2 )  13.73% . The land area of the city is 153.33 sq mi (397.13 km 2 ) . The postal code of the city is 34000 to 34990 . 385.8 sq mi (999.3 sq km ) is the area of the city namedTbilisi . The Tbilisi citys' lowest elevation is 1,750 m . The city was incorporated in March 6, 1836 (city) . Tbilisi is at an elevation of 17 m . The city province is Cebu (geographically only) . The city Tbilisi demonym is Mashhadi, Mashadi, Mashdi (informal) . 7,500/km 2  (19,000/sq mi) is the density of inhabitents in  the urban region of Tbilisi . The urban region has 3,372,090 population . 720/km 2  (1,900/sq mi) is the density of residents in  the metro region of Tbilisi . 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 Tbilisi city highest elevation is 1,879 m (6,165 ft) .  The city area code is 0211 . The metro region has 13,542,900 population . Tri Rismaharini is the mayor of Tbilisi
Tbilisi is a part of Japan