Tbilisi is located in the center of the Caucasus, in the plain between mountains, in the gorge of river Mtkvari, in the cavity of the same name, within the 350-900 meters above the sea level, in the latitude of 41042’ and longitude of 44047’, in the close distance from several physical geographic entities (Shida and Kvemo Kartly valley, Iori highland) and historical and geographic provinces (Kvemo Kartli, Trialeti, Shida Kartli and Kakheti).
The area of the city amounts to 500 sq.km (only 40% of the territory is developed), and the population exceeds 1,1 million. The city increased the speed of its development especially from the second half of the XX century. In this period its population grew 2,5-fold and the area – 5-fold. Tbilisi is a multi-ethnic city where people of several religious denominations and dozens of ethnicities live. According to the last census results, after Georgians (84%), the residents of Tbilisi are predominantly Armenians and Russians.
Tbilisi cavity is located between average-height mountain ranges (Trialeti, Saguramo-Ialno) and low mountains (Keeni, Dzedzvi and Makhata). The climate of the city is subtropical dry. The average temperature in January is +0.90C and in July - +24.40C. The precipitation volume hovers between 540 mm (southern and eastern parts) and 800 mm (western and northern parts), and evaporation runs up to 900 mm. These weather parameters are based on the natural conditions, the latter being specified by landscape variety. Within the borders of Tbilisi there are 8 types of landscapes (sub-Mediterranean semi-humid, subtropical semi-arid, hydromorphic and sub-hydromorphic, moderately warm humid, etc.) of which one, Tugai grove, is sparse and fragmented.
Within the city boundaries river Mtkvari - the main water artery of the city – is joined by many rivulets and seasonal dry ravines. The length of river Mtkvari here is 35 km. In the environs of the city there are two lakes (lake Lisi and Turtle lake) and one water basin which are the most important recreational facilities.
Tbilisi is the most important economic and transit center of the Caucasus. At about 2/5 of the industrial products manufactured in Georgia are produced here. Abundance of educational institutions, architectural memorials, playhouses, exhibition halls and museums earmarks the city as a cultural and recreational hub in the whole Caucasus.