Huánuco is a city in central Peru. It had a population of 196,627 as of 2017 and in 2015 it had a population of 175,068. It is the capital of the Huánuco Region and the Huánuco District. It is the seat of the diocese of Huánuco. The metropolitan city of Huanuco is 170,000 hab (2011, urban pop, INEI). It has three districts, Huanuco (head), Amarilis, and Pillco Marca. In this city, the Higueras river meets the Huallaga river, one of the largest rivers in the country.