According to the 2001 census, ethnic Ukrainians make up roughly 78% of the population, while Russians are the largest minority, at some 17.3% of the population. Small minority populations include: Belarusians (0.6%), Moldovans (0.5%), Crimean Tatars (0.5%), Bulgarians (0.4%), Hungarians (0.3%), Romanians (0.3%), Poles (0.3%), Jews (0.3%), Armenians (0.2%), Greeks (0.2%) and Tatars (0.2%). It is also estimated that there are about 10–40,000 Koreans in Ukraine, who live mostly in the south of the country, belonging to the historical Koryo-saram group.