Budapest is the capital and most populous city of Hungary. It is the tenth-largest city in the European Union by population within city limits and the second-largest city on the river Danube. The estimated population of the city in 2025 is 1,782,240. This includes the city's population and surrounding suburban areas, over a land area of about 525 square kilometres (203 square miles). Budapest, which is both a city and municipality, forms the centre of the Budapest metropolitan area, which has an area of 7,626 square kilometres (2,944 square miles) and a population of 3,019,479.
https://en.wikipedia.org/wiki/Budapest