Huainan is a prefecture-level city with 3,033,528 inhabitants as of the 2020 census in north-central Anhui province, China. It is named for the Han-era Principality of Huainan. It borders the provincial capital of Hefei to the south, Lu'an to the southwest, Fuyang to the west, Bozhou to the northwest, Bengbu to the northeast and Chuzhou to the east. Huainan is one of the core cities of Hefei Metro…