Valga County County in southern Estonia(pop.31,000). is one of the 15 counties and lies in the southern part of Estonia (population approx. 31,000). Valga County County in southern Estonia(pop.31,000). has a common border with Latvia on the south, Viljandi County County in the southern part of Estonia (pop. 46,000). on the west, Tartu County County in the east of Estonia (pop. 154,000). on the northeast, Põlva County County in the SE of Estonia(pop. 29,000). on the east and Võru County County in southern Estonia(pop.35,000). on the southeast.