From the Wikipedia page 
Võrumaa, or Võru maakond (English: Võru County, Estonian: Võru maakond, Võro: Võro maakund) officially, is a county in Southern Estonia. It is bordered by Valga County and Põlva County and is the only Estonain county bordering two different countries - Latvia (in the South) and Russian Federation (in the East).
The territory of Võrumaa covers 2,305 km² and is influenced by a temperate seasonal climate. In January 2013 Võru County had a population of 32,806 – constituting 2.5% of the total population in Estonia. The county is subdivided into 12 rural municipalities and 1 urban municipality - Võru town.