Tai'an is a prefecture-level city in western Shandong province, People's Republic of China. Centered around Mount Tai, the city borders the provincial capital of Jinan to the north, Laiwu to the northeast, Zibo to the east, Linyi to the southeast, Liaocheng to the extreme west and Jining to the south. To the west, Tai'an is separated from the province of Henan by the Yellow River.
Its population is 5,494,200 at the 2010 census whom 1,594,877 in the built up area made of 2 urban districts (Xintai and Feicheng). The prefecture-level city of Tai'an administers 6 county-level divisions, including 2 districts, 2 county-level cities and 2 counties.