Hungary is a landlocked country in Central Europe. Spanning much of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, both Croatia and Slovenia to the southwest, and Austria to the west. Hungary lies within the Danube River's drainage basin, and is dominated by great lowland plains. It has a population of over 9.5 million, consisting mostly of ethnic Hungarians (Magyars) and a significant Romani minority. Hungarian is the official language, and among the few in Europe outside the Indo-European family. Budapest is the country's capital and its largest city, and the dominant cultural and economic centre.