Hungary’s most populated and capital city is Budapest. By population inside city limits, it is the second-biggest city on the Danube River and the ninth-largest city in the European Union. With a surface area of roughly 525 square kilometers, the city is home to an estimated 1,752,286 people (203 square miles).[14] The hub of the 7,626 square kilometers (2,944 square miles) and 3,303,786-person Budapest metropolitan region is Budapest, which is both a city and a municipality. It is a primate city where 33% of Hungary’s population lives.