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Chifeng, also known as Ulankhad in Mongolian, is a prefecture-level city in Southeastern Inner Mongolia, People's Republic of China. It borders Xilin Gol League to the north and west, Tongliao to the northeast, Chaoyang (Liaoning) to the southeast and Chengde (Hebei) to the south. The city has a total administrative area of 90,275 km⁲ (34,855 sq mi) and as of the 2020 census, had a population of 4,035,967 inhabitants. However, 1,175,391 of those residents lived in the built-up area made of the 2 urban districts of Hongshan and Songshan, as Yuanbaoshan is not conurbated yet. However, a large part of Songshan district is still rural and Yuanbaoshan district a de facto separate town 27 kilometers away from the core district of Chifeng. The city was the administrative center of the previous Ju Ud League.