The population is 85.7% Slovak according to the latest estimates. Hungarians, heavily concentrated in southern border areas, total 10.6%. Romas (Gypsies) are reported to make up 1.6% of the populace; Czechs form 1%; Ruthenians account for 0.3%; Ukranians for another 0.3%; Germans for 0.1%; Poles for an additional 0.1%; and various other groups account for the remaining 0.3%. The Gypsy population in eastern Slovakia is underreported but estimated to be sizeable. Czechs have the option of dual citizenship.