Pingdu (Chinese: 平度; pinyin: Píngdù) is the largest county-level city of Qingdao sub-provincial city, Shandong Province, China. It is located in the east of the Shandong Peninsula (Jiaodong Peninsula), the heart of peninsula. It borders Yantai and Weifang, and it has an area of 3,166 km2 (1,222 sq mi) and a population of 1,360,000 people.[citation needed] The administrative divisions of Pingdu have undergone a relatively large number of changes in the past thirty years.[1][2][3] As of 2016[update], Pingdu had five subdistricts, 12 towns and one other area:[4][5]