Its main town and administrative center is Borjomi and it has an area of 1,189 km2 (459 sq mi).

The municipality consists in large part of subranges of the Lesser Caucasus mountains, the western end of the Trialeti Range and the eastern end of the Meskheti Range which are separated by the Borjomi Gorge through which the Mtkvari river flows.

Between the main ridge of the Trialeti Range and the Gvirgvini subrange the Tory basin is located.

[3] Borjomi municipality is administratively divided into 11 administrative units (communities, თემი, temi), these include Akhaldaba, Bakuriani, Balanta, Borjomi, Dviri, Tabatskuri, Tadzrisi, Tba, Kvibisi, Tsikhisdzhvari, Tsagveri.

Other minorities include Ossetians (1.3%), Greeks (1.2%), Russians (1.1%), Ukrainians (0.3%) and minimal numbers of Azerbaijanis, Jews, Assyrians and Abkhazians.